Dr Miguel Cruz Irisson

@article{Garc\'{i}a2025,

title = {DNA/RNA nucleobases sensing by silicon nanowires: A DFT study},

author = {Kevin J. Garc\'{i}a and Jos\'{e} E. Santana and \'{A}lvaro Miranda and Alejandro Trejo and Fernando Salazar and Ivonne J. Hern\'{a}ndez-Hern\'{a}ndez and Luis A. P\'{e}rez and Miguel Cruz-Irisson},

doi = {10.1016/j.vacuum.2025.114383},

issn = {0042-207X},

year  = {2025},

date = {2025-09-00},

journal = {Vacuum},

volume = {239},

publisher = {Elsevier BV},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{CID2025112251,

title = {Doped diamond nanowires for NO and NO2 adsorption and sensing: A DFT investigation},

author = {Brandom J. Cid and Jos\'{e} E. Santana and \'{A}lvaro Miranda and Alejandro Trejo and Fernando Salazar and Luis A. P\'{e}rez and Riccardo Rurali and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0925963525003085},

doi = {https://doi.org/10.1016/j.diamond.2025.112251},

issn = {0925-9635},

year  = {2025},

date = {2025-01-01},

urldate = {2025-01-01},

journal = {Diamond and Related Materials},

volume = {154},

pages = {112251},

abstract = {Density functional theory (DFT) calculations were performed to investigate the adsorption of gas molecules (N2, O2, NO, and NO2) on undoped and X-doped (X = B, Al, Ga) diamond nanowires (DNWs). The sensitivity of these nanowires towards pollutant molecules was analyzed through the calculation of the molecule adsorption energies and electronic properties of the molecule-DNW complexes. The results show that all the studied molecules are adsorbed on undoped and doped DNWs. Moreover, the adsorption energies of N2, O2 and NO2 are improved by doping DNW with Al atoms. In contrast, undoped DNWs have the highest adsorption energy for NO molecules. Moreover, the results show that undoped DNWs are highly sensitive towards NO2 molecules, whereas B-doped DNWs are highly sensitive to N2, O2, and NO. In addition to the excellent performance of DNWs for O2, NO, and NO2 trapping and N2 sensing, they also exhibit adequate recovery times for high-temperature sensing applications.},

keywords = {DFT, Diamond nanowires, Molecule sensing, Molecule trapping, Nitrogen oxides},

pubstate = {published},

tppubtype = {article}

}

@article{JIMENEZSANCHEZ2024110526,

title = {DFT insight into the structural, vibrational, and electronic properties of thin [110] Ge nanowires as anodic material for Li batteries},

author = {Ricardo Jim\'{e}nez-S\'{a}nchez and Pedro Morales-Vergara and Alma R. Heredia and Jacqueline Rebollo-Paz and \'{A}lvaro Miranda and Alejandro Trejo and Fernando Salazar and Luis Antonio P\'{e}rez and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S2352492824025078},

doi = {https://doi.org/10.1016/j.mtcomm.2024.110526},

issn = {2352-4928},

year  = {2024},

date = {2024-01-01},

urldate = {2024-01-01},

journal = {Materials Today Communications},

volume = {41},

pages = {110526},

abstract = {Germanium nanowires could be used to improve as anodic materials since their charge rate is better than that of the current graphite electrodes. In this work, we present a Density Functional Theory study of the effect of interstitial Li atoms on the vibrational, electronic, and mechanical properties of ultrathin hydrogen-passivated Ge nanowires (HGeNWs) with diamond structure, grown along the [110] crystallographic direction, and with a diameter of ∼14.4 r{A}. The interstitial Li atoms were placed at the tetrahedral positions (Td) reported as the more favorable ones. The phonon band structure of the HGeNWs reveals the existence of high frequency vibrations due to the hydrogen atoms at the nanowire surface. The effect of one interstitial Li atom in the nanowire leads to the apparition of three flat phonon bands almost independent of the collective vibrational states of the nanowire, reflecting a weak interaction between the Li atom and the neighboring ones; and a shift of the high vibrational modes to lower frequencies that results in more dispersive states. The electronic band structure confirms a transition from semiconducting to metallic behavior by adding a single Li interstitial atom per unit cell. The formation energies indicate that the nanowires with interstitial Li atoms are stable, and the average binding energy per Li atom slightly increases as a function of the concentration of Li atoms. The insertion of Li atoms in the nanowire leads to a volumetric expansion, without fracture or broken bonds. Even more, the redistribution of the electronic charge due to the Li atoms give the Ge-Ge bonds more axial elasticity and the values of the modulus of Young are almost constant for all studied concentrations of Li atoms. These theoretical results indicate an improvement of mechanical and electronic properties of Ge nanowires through the addition of interstitial Li atoms that could be important for their use as anodes in rechargeable Li batteries.},

keywords = {Anodic materials, Density Functional Theory, Ge nanowires, Li batteries},

pubstate = {published},

tppubtype = {article}

}

@article{GONZALEZ2024114087,

title = {First-principles study of interstitial Li effects on the electronic, structural and diffusion properties of highly boron-doped porous silicon},

author = {I. Gonz\'{a}lez and R. Nava and M. Cruz-Irisson and J. A. R\'{i}o and I. Ornelas-Cruz and J. Pilo and Y. G. Rubo and A. Trejo and J. Tag\"{u}e\~{n}a},

url = {https://www.sciencedirect.com/science/article/pii/S2352152X24036739},

doi = {https://doi.org/10.1016/j.est.2024.114087},

issn = {2352-152X},

year  = {2024},

date = {2024-01-01},

urldate = {2024-01-01},

journal = {Journal of Energy Storage},

volume = {102},

pages = {114087},

abstract = {Silicon-based anodes for Li-ion batteries have been the subject of intense research due to their high storage capacity, low working potential, and abundant resources. Nevertheless, the low electrical conductivity, large volume changes and slow Li ion diffusivity in silicon have hampered its performance. In this work, we modelled B-doped porous silicon passivated with hydrogen to analyse the effect of interstitial Li atoms on its electronic, structural, and diffusion properties by the density functional theory (DFT). Results show that high boron doping induces metallic properties in porous silicon, which are also improved by interstitial Li atoms. The metallic behaviour of porous Si is detailed by the calculations of the effective masses and the Fermi surfaces. Conversely, the B atoms produce volumetric compression, which partially compensates for the volumetric expansion generated by the interstitial Li atoms. Furthermore, the bulk moduli of the B-doped porous structure and the B-doped porous structure with the highest Li concentration here considered show a variation of 0.2 % and 0.37 %, respectively. These results suggest that the addition of large amounts of B and Li atoms slightly reduces the hydrostatic compressive strength of the porous silicon. Finally, we found that the dopant contributes to the asymmetric Li diffusion activation since the energy barrier of 0.86 eV must be overcome when Li migration occurs from the interior to the edge of the wall. In contrast, in the opposite direction, the energy barrier increases to 1.43 eV. This implies that the Li atom could preferentially be stored in the pore surface area.},

keywords = {B-doping, Bulk modulus, Diffusion path, electronic properties, Li-ion battery, porous silicon},

pubstate = {published},

tppubtype = {article}

}

@article{SANTANA2024416332,

title = {Urea adsorption and detection using silicon nanowires doped with B, Al, C, Ge, N, and P: A DFT investigation},

author = {Jos\'{e} E. Santana and Kevin J. Garc\'{i}a and Ivonne J. Hern\'{a}ndez-Hern\'{a}ndez and \'{A}lvaro Miranda and Miguel Cruz-Irisson and Luis A. P\'{e}rez},

url = {https://www.sciencedirect.com/science/article/pii/S0921452624006732},

doi = {https://doi.org/10.1016/j.physb.2024.416332},

issn = {0921-4526},

year  = {2024},

date = {2024-01-01},

urldate = {2024-01-01},

journal = {Physica B: Condensed Matter},

volume = {691},

pages = {416332},

abstract = {Urea can serve as a biomarker for the detection of various illnesses, including renal and hepatic failure. Consequently, the development of novel devices and materials capable of adsorbing and identifying urea is a crucial objective for the scientific community. This study theoretically investigates the adsorption and detection capabilities of doped silicon nanowires (SiNWs) for urea using Density Functional Theory (DFT). Doping involves substituting a silicon atom on the surface with a dopant atom; B, Al, C, Ge, N, and P were employed for this purpose. This study presents an innovative method for enhancing urea adsorption and detection by doping SiNWs with group XIII elements, specifically aluminum and boron atoms. The results indicate that this doping significantly improves urea adsorption on SiNWs compared to undoped SiNWs. Notable changes in the bandgaps and work functions of the doped nanowires following urea adsorption suggest their potential use as diagnostic tools for uremia.},

keywords = {Biosensor, Density Functional Theory, Sensing, Silicon nanowires, Urea},

pubstate = {published},

tppubtype = {article}

}

@article{HERNANDEZHERNANDEZ2024136805,

title = {A comparative DFT study of CO and NO capture by copper- and titanium-functionalized SiC and GeC monolayers},

author = {Ivonne J. Hern\'{a}ndez-Hern\'{a}ndez and Francisco Santiago and Alma L. Marcos-Viquez and \'{A}lvaro Miranda and Miguel Cruz-Irisson and Luis A. P\'{e}rez},

url = {https://www.sciencedirect.com/science/article/pii/S0167577X24009443},

doi = {https://doi.org/10.1016/j.matlet.2024.136805},

issn = {0167-577X},

year  = {2024},

date = {2024-01-01},

urldate = {2024-01-01},

journal = {Materials Letters},

volume = {370},

pages = {136805},

abstract = {In this work, the interactions of NO and CO molecules with silicon carbide (SiC) and germanium carbide (GeC) graphene-like nanosheets, functionalized with titanium and copper atoms, are comparatively studied through density-functional calculations. The results indicate that NO and CO molecules are only slightly adsorbed on the pristine carbide nanosheets. Also, the copper and titanium adatoms are chemisorbed on the monolayers, leading to stable functionalized carbide nanosheets. These adatoms greatly enhance the binding energies of CO and NO. In particular, the titanium-functionalized GeC monolayers display the highest adsorption energies for CO and NO and also the largest changes in their work functions upon molecule adsorption, indicating that they could be useful for trapping or detecting these molecules.},

keywords = {Functionalized two-dimensional materials, Gas sensors, Germanium carbide, Silicon carbide, Toxic gas capture},

pubstate = {published},

tppubtype = {article}

}

@article{DESANTIAGO2024668,

title = {First principles study of hydrogen storage on B-doped SiC monolayers through light transition metal atoms},

author = {Francisco De Santiago and Lucia G. Arellano and Ivonne J. Hern\'{a}ndez-Hern\'{a}ndez and Alma R. Heredia and \'{A}lvaro Miranda and Alejandro Trejo and Luis A. P\'{e}rez and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0360319924009650},

doi = {https://doi.org/10.1016/j.ijhydene.2024.03.133},

issn = {0360-3199},

year  = {2024},

date = {2024-01-01},

urldate = {2024-01-01},

journal = {International Journal of Hydrogen Energy},

volume = {63},

pages = {668-676},

abstract = {In this first-principles study, based on Density Functional Theory, we assess the capacity of metal-decorated, boron-doped, graphene-like monolayers of silicon carbide (SiC) to adsorb hydrogen molecules. To enhance the binding of metal adatoms on SiC monolayers, these were substitutionally doped with boron atoms. Alkaline, alkaline-earth, and transition metal adatoms were considered and their hydrogen storage capabilities were compared. The results show that alkaline-earth metal adatoms are not suitable for hydrogen storage. On the other hand, sodium- and potassium-decorated B-doped SiC monolayers adsorb the largest number of H2 molecules per adatom, but their adsorption energies are insufficient for an adequate hydrogen storage. Titanium and scandium adatoms are the most suitable for hydrogen storage since they exhibit good adsorption energies and up to four and five H2 molecules per adatom, respectively. Moreover, the estimated potential barriers for diffusion of these two adatoms on the B-doped SiC monolayers indicate that the probability of clustering is very low. Moreover, within the ideal-gas approximation, it is estimated that hydrogen can be stored in the Ti- and Sc-decorated monolayers at room temperature and atmospheric pressure. Furthermore, if SiC monolayers were doped with boron atoms in concentrations similar to those reported for graphene, it is estimated that the gravimetric capacities could reach 5.1 wt% and 6.3 wt% for Ti-decorated and Sc-decorated monolayers, respectively, which are close to the target hydrogen-storage capacities envisioned for the near future.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{SANTANA2024416332b,

title = {Urea adsorption and detection using silicon nanowires doped with B, Al, C, Ge, N, and P: A DFT investigation},

author = {Jos\'{e} E. Santana and Kevin J. Garc\'{i}a and Ivonne J. Hern\'{a}ndez-Hern\'{a}ndez and \'{A}lvaro Miranda and Miguel Cruz-Irisson and Luis A. P\'{e}rez},

url = {https://www.sciencedirect.com/science/article/pii/S0921452624006732},

doi = {https://doi.org/10.1016/j.physb.2024.416332},

issn = {0921-4526},

year  = {2024},

date = {2024-01-01},

urldate = {2024-01-01},

journal = {Physica B: Condensed Matter},

volume = {691},

pages = {416332},

abstract = {Urea can serve as a biomarker for the detection of various illnesses, including renal and hepatic failure. Consequently, the development of novel devices and materials capable of adsorbing and identifying urea is a crucial objective for the scientific community. This study theoretically investigates the adsorption and detection capabilities of doped silicon nanowires (SiNWs) for urea using Density Functional Theory (DFT). Doping involves substituting a silicon atom on the surface with a dopant atom; B, Al, C, Ge, N, and P were employed for this purpose. This study presents an innovative method for enhancing urea adsorption and detection by doping SiNWs with group XIII elements, specifically aluminum and boron atoms. The results indicate that this doping significantly improves urea adsorption on SiNWs compared to undoped SiNWs. Notable changes in the bandgaps and work functions of the doped nanowires following urea adsorption suggest their potential use as diagnostic tools for uremia.},

keywords = {Biosensor, Density Functional Theory, Sensing, Silicon nanowires, Urea},

pubstate = {published},

tppubtype = {article}

}

@article{hen2023,

title = {First principles study of hydrogen storage on B-doped SiC monolayers 2 through light transition metal atoms},

author = {F. De Santiago and L. G. Arellano and I. J. Hern\'{a}ndez-Hern\'{a}ndez and A. R. Heredia and \'{A}. Miranda and A. Trejo and Luis A. P\'{e}rez and Miguel Cruz-},

url = {https://doi.org/10.1016/j.ijhydene.2024.03.133},

doi = {10.1016/j.ijhydene.2024.03.133},

year  = {2023},

date = {2023-09-13},

urldate = {2023-09-13},

journal = {International Journal of Hydrogen Energy},

volume = {63},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{energystore2023b,

title = {DFT insights into Cu-driven tuning of chemisorption and physisorption in the hydrogen storage by SnC monolayers},

author = {R. Bermeo-Campos and L. G. Arellano and \'{A}. Miranda and F. Salazar and A. Trejo and R. Oviedo-Roa and M. Cruz-Irisson},

url = {https://doi.org/10.1016/j.est.2023.109205},

doi = {10.1016/j.est.2023.109205},

year  = {2023},

date = {2023-09-13},

urldate = {2023-09-13},

journal = {Journal of Energy Storage},

volume = {73D},

keywords = {2D monolayers, Density functional calculations},

pubstate = {published},

tppubtype = {article}

}

@article{energystore2023c,

title = {A DFT investigation: High-capacity hydrogen storage in metal-decorated doped germanene},

author = {A. Sosa and B. J. Cid, \'{A}. Miranda and L. A. P\'{e}rez and G. Hern\'{a}ndez-Cocoletzi and M. Cruz-Irisson},

year  = {2023},

date = {2023-09-12},

urldate = {2023-09-13},

journal = {Journal of Energy Storage},

volume = {En prensa},

keywords = {2D monolayers, Alkali metal adatoms, Density functional calculations},

pubstate = {published},

tppubtype = {article}

}

@article{Jim\'{e}nez-S\'{a}nchez_Morales-Vergara_Salazar_Miranda_Trejo_Hern\'{a}ndez-Hern\'{a}ndez_P\'{e}rez_Cruz-Irisson_2023,

title = {Theoretical study of [111]-germanium nanowires as anode materials in rechargeable batteries: a density functional theory approach},

author = {Ricardo Jim\'{e}nez-S\'{a}nchez and Pedro Morales-Vergara and Fernando Salazar and Alvaro Miranda and Alejandro Trejo and Ivonne J. Hern\'{a}ndez-Hern\'{a}ndez and Luis Antonio P\'{e}rez and Miguel Cruz-Irisson},

url = {https://rmf.smf.mx/ojs/index.php/rmf/article/view/6816},

doi = {10.31349/RevMexFis.69.031604},

year  = {2023},

date = {2023-05-01},

urldate = {2023-05-01},

journal = {Revista Mexicana de F\'{i}sica},

volume = {69},

number = {3 May-Jun},

pages = {031604 1\textendash},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{GONZALEZ2023106840,

title = {Exploring the electronic and mechanical properties of lithium-decorated silicon carbide nanowires for energy storage},

author = {Mario Gonzalez and Fernando Salazar and Alejandro Trejo and \'{A}lvaro Miranda and Roc\'{i}o Nava and Luis Antonio P\'{e}rez and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S2352152X23002372},

doi = {https://doi.org/10.1016/j.est.2023.106840},

issn = {2352-152X},

year  = {2023},

date = {2023-01-01},

journal = {Journal of Energy Storage},

volume = {62},

pages = {106840},

abstract = {The high chemical stability of silicon carbide (SiC) is attractive to inhibit unwanted side chemical reaction and prolongate the cyclability performance of lithium ion batteries anodes. However, SiC has high surface lithiation energy barrier due to its intrinsic nature and the low electrical conductivity limited the application in this area. The surface modification of SiC is an alternative to boost the lithiation\textendashdelithiation kinetics. Hydrogen incorporation on SiC surface is extensively used in semiconductor industry to passivate electrically active centers. In this work, we present a theoretical study of the effect of surface lithium (Li) atoms on the electronic and mechanical properties of hydrogen passivated SiC nanowires (H-SiCNWs) with zinc-blende structure. The results show that the adsorption of Li on the carbon (C) atoms at the surface of the nanowire introduces new electronic states within the former band gap of the H-SiCNWs, whose main contribution comes from the C and silicon (Si) atoms in the valence and conduction bands, respectively. Moreover, the number of new bands within the former band gap increases as a function of the concentration of Li atoms and the systems remain as intrinsic semiconductors up to the maximum Li concentrations. The formation energy reveals that the stability of the nanowires increases when the concentration of Li atoms augments. Moreover, the values of the open circuit voltage are found between 1.6 and 1.9 V for all studied concentrations of Li atoms and morphologies. The charge population analysis indicates that the Li atoms give up charge to the C ones resulting in ionic bonds. On the other hand, the Young modulus of the H-SiCNWs increases when their diameter augments and their values are lower than that of the bulk SiC. Besides, the Young modulus slightly diminishes when the concentration of Li grows, then the mechanical resistance could offer a large useful life of the electrode. Finally, the maximum theoretical storage capacity values indicate that the SiC nanowires (SiCNWs) are good potential anodic materials for rechargeable Li-ion batteries.},

keywords = {Anodes, Density Functional Theory, Lithium ion batteries, SiC nanowires},

pubstate = {published},

tppubtype = {article}

}

@article{JIMENEZSANCHEZ2023102745,

title = {Surface Li effects on the electronic properties of GaAs nanowires: A first principles approach},

author = {Ricardo Jim\'{e}nez-S\'{a}nchez and Sara E. P\'{e}rez-Figueroa and Alejandro Trejo-Ba\~{n}os and \'{A}lvaro Miranda and Fernando Salazar and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S2468023023001153},

doi = {https://doi.org/10.1016/j.surfin.2023.102745},

issn = {2468-0230},

year  = {2023},

date = {2023-01-01},

journal = {Surfaces and Interfaces},

volume = {38},

pages = {102745},

abstract = {The quest for the improvement of Li-Ion batteries has directed attention towards semiconductor nanostructures, like nanowires. However, the surface interactions and effects of Li on the electronic properties of these nanostcrutures has been less explored. Especially the possible modifications to the properties of GaAs nanowires that arise from having Li on its surface have been seldom studied. In this work, we employed Density Functional Theory to study the effects of surface Li on the electronic properties of H passivated GaAs nanowires grown along the [111] direction. To determinate the isolated effects of Li on either surface Ga or As, only Li bonded to either Ga[GaAsNW_Ga-Li] or As[GaAsNW_As-Li] were considered, and up to 6 Li were placed on the respective nanowire surfaces. The results indicate that the energy gap is a function of the Li concentration, the nanowire diameter and the placement of Li on the nanowire surface. The binding energy is independent of the number of Li on the nanowire surface, where the GaAsNW_Ga-Li has slower binding energies compared to the GaAsNW_As-Li, but the binding energies and band gaps in both cases are high, which would hinder the application of these nanowires in Li ion batteries.},

keywords = {DFT, GaAs nanowires, Surface passivation},

pubstate = {published},

tppubtype = {article}

}

@article{SANTANA2023102584,

title = {Highly sensitive amphetamine drug detection based on silicon nanowires: Theoretical investigation},

author = {Jos\'{e} Eduardo Santana and Akari Narayama Sosa and Francisco De Santiago and \'{A}lvaro Miranda and Luis Antonio P\'{e}rez and Alejandro Trejo and Fernando Salazar and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S2468023022008392},

doi = {https://doi.org/10.1016/j.surfin.2022.102584},

issn = {2468-0230},

year  = {2023},

date = {2023-01-01},

journal = {Surfaces and Interfaces},

volume = {36},

pages = {102584},

abstract = {Amphetamine (AA) is used in some therapeutic treatments, but it is also one of the most widely used illicit drugs. Therefore, a correct tracking of AA in various environments is crucial for its controlled distribution even inside the human body. However, current sensors are still too large to fit inside the human body and their biocompatibility is still deficient. Since the discovery of nanostructures, especially silicon nanowires (SiNWs), the possibilities of sensors inside the human body have increased due to their enhanced properties and biocompatibility. However, theoretical studies about the capabilities of SiNWs with surface modifications as sensing materials are still scarce. Using Density Functional Theory, we investigate the effects of amphetamine adsorption on the work function, and other electronic and structural properties, of pristine and modified SiNWs. Two types of modifications were studied, i.e., substitutional doping with B, Al, and Ga atoms and surface functionalization with the same species. The adsorption energies of the amphetamine molecule are larger for the doped nanowires, followed by the functionalized ones, and lastly, the undoped Si nanowire.This study shows that undoped, doped, and functionalized SiNWs are excellent candidates for AA sensing, with B being the best chemical species for improving AA adsorption for both doped and functionalized schemes.},

keywords = {Amphetamine, DFT, Doping, Drug, Sensor, Silicon nanowires},

pubstate = {published},

tppubtype = {article}

}

@article{SANTANA2023102529,

title = {Selective sensing of DNA/RNA nucleobases by metal-functionalized silicon nanowires: A DFT approach},

author = {Jos\'{e} E. Santana and Kevin J. Garc\'{i}a and Francisco De Santiago and \'{A}lvaro Miranda and Sara E. P\'{e}rez-Figueroa and Jos\'{e} E. Gonz\'{a}lez and Luis A. P\'{e}rez and M. Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S246802302200788X},

doi = {https://doi.org/10.1016/j.surfin.2022.102529},

issn = {2468-0230},

year  = {2023},

date = {2023-01-01},

journal = {Surfaces and Interfaces},

volume = {36},

pages = {102529},

abstract = {Ultrasensitive chemical sensors based on silicon nanowires (SiNW) are optimal for detection of biological species, since they are fast and non-invasive, their fabrication is compatible with current semiconductor technology, and silicon is a biocompatible material. SiNW-based DNA sensors are well known, but there are few studies regarding the interaction of SiNWs with the single DNA/RNA nucleobases: Guanine (G), Cytosine (C), Adenine (A), Thymine (T), and Uracil (U). This work uses Density Functional Theory to study the interaction between the single nucleobases and SiNWs decorated with Cu, Ag and Au atoms, to determine their potential use as nucleobase detectors or carriers, or even to use nucleobase-functionalized SiNWs as sensing platform for other chemical species. Numerical results show remarkable changes of the nanowire's band gap upon adsorption of nucleobases. Likewise, the adsorption energies of the nucleobases on the functionalized SiNW follow the trend C \> G \> A \> T \> U. Cu-functionalized nanowires are suitable for the electrical detection of cytosine, while Au-functionalized nanowires may detect thymine and uracil. On the other hand, large variations of the nanowire work function were found when guanine and adenine are adsorbed on Cu-functionalized nanowires.},

keywords = {DFT, DNA, Nucleobases, RNA, Sensors, Silicon nanowires},

pubstate = {published},

tppubtype = {article}

}

@article{CID2023155541,

title = {Metal-decorated siligene as work function type sensor for NH3 detection: A DFT approach},

author = {Brandom J. Cid and Jos\'{e} E. Santana and Lucia G. Arellano and \'{A}lvaro Miranda and Sara E. P\'{e}rez-Figueroa and Mar\'{i}a I. Iturrios and Luis A. P\'{e}rez and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0169433222030690},

doi = {https://doi.org/10.1016/j.apsusc.2022.155541},

issn = {0169-4332},

year  = {2023},

date = {2023-01-01},

journal = {Applied Surface Science},

volume = {610},

pages = {155541},

abstract = {In this work, we employed density functional theory calculations to investigate the feasibility of X-decorated (X = Li, Na, K, Mg, Ca, Sc, Ti, and Pd) two-dimensional siligene (2D SiGe) for ammonia (NH3) sensing through variations of its work function. The results indicated that NH3 molecule is physisorbed on pristine 2D SiGe. Moreover, Li, Na, K, Sc, Ti, Pd and Ca atoms are chemisorbed on the 2D SiGe, while Mg is barely adsorbed. Likewise, NH3 tends to be adsorbed on the metal atoms of the decorated 2D SiGe with adsorption energies between −0.13 eV and−1.47 eV. The changes observed in the work functions of Na-, Mg-, Ca-, Sc-, and Pd-decorated 2D SiGe upon NH3 may allow its detection. Moreover, the results indicate that only the recovery times of 2D SiGe decorate with Na, K, Ca and Pd atoms could allow for their use as reusable sensors of NH3, while 2D SiGe decorated with Li, Mg, Sc and Ti could be used to trap NH3. From the results of work functions and recovery times on metal decorated 2D SiGe, it is concluded that Pd, Ca, and Na-decorated 2D SiGe are the most suitable material for sensing NH3 molecules.},

keywords = {2D SiGe, Ammonia, DFT, Monolayers, Sensing, Work function},

pubstate = {published},

tppubtype = {article}

}

@article{PhysRevMaterials.7.014006,

title = {Theoretical prediction of two-dimensional II-V compounds},

author = {Lucia G. Arellano and Takayuki Suga and Taichi Hazama and Taichi Takashima and Miguel Cruz-Irisson and Jun Nakamura},

url = {https://link.aps.org/doi/10.1103/PhysRevMaterials.7.014006},

doi = {10.1103/PhysRevMaterials.7.014006},

year  = {2023},

date = {2023-01-01},

journal = {Phys. Rev. Mater.},

volume = {7},

issue = {1},

pages = {014006},

publisher = {American Physical Society},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{ARELLANO2023,

title = {Hydrogen storage on tin carbide monolayers with transition metal adatoms},

author = {Lucia G. Arellano and Alma L. Marcos-Viquez and Francisco De Santiago and \'{A}lvaro Miranda and Luis A. P\'{e}rez and Jun Nakamura and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0360319923018621},

doi = {https://doi.org/10.1016/j.ijhydene.2023.04.127},

issn = {0360-3199},

year  = {2023},

date = {2023-01-01},

journal = {International Journal of Hydrogen Energy},

abstract = {In this work, we employ Density Functional Theory to study the effects of decoration with transition metal (TM) atoms\textemdashAg, Au, Cu, Sc, Ti and Pd\textemdashon the H2 adsorption properties of tin carbide monolayers (SnC-ML), as a prospective material for hydrogen storage. The results indicate that TM adatoms are strongly bonded to the SnC-ML and that electronic charge is transferred from the adatoms to the SnC-ML. In particular, it is found that Sc and Ti are chemisorbed on SnC-ML with strong binding energies. The most stable adsorption site for these metal atoms is above Sn atoms of the SnC-ML. Also, these TM atoms exhibit the higher hydrogen-storage capacities with up to four hydrogen molecules per adatom. In contrast, the other studied metals have at most 2 hydrogen molecules adsorbed. Approximate temperature- and pressure-dependent curves suggest that, to storage hydrogen, Sc- and Ti-decorated SnC-ML should be cooled under freezing temperatures, or kept at 1 MPa and 2.5 MPa, respectively, which are much lower pressures than those currently used in vehicular tanks, which attain pressures of 35 MPa. These results indicate that Sc and Ti decorated SnC-ML can be useful as hydrogen-storage solid-state devices.},

keywords = {2D materials, DFT, Hydrogen storage, Tin carbide, Transition metals},

pubstate = {published},

tppubtype = {article}

}

@article{BERMEOCAMPOS2023157481,

title = {Surface morphology effects on the mechanical and electronic properties of halogenated porous 3C-SiC: A DFT study},

author = {R. Bermeo-Campos and K. Madrigal-Carrillo and S. E. Perez-Figueroa and M. Calvino and A. Trejo and F. Salazar and A. Miranda and M. Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0169433223011595},

doi = {https://doi.org/10.1016/j.apsusc.2023.157481},

issn = {0169-4332},

year  = {2023},

date = {2023-01-01},

journal = {Applied Surface Science},

volume = {631},

pages = {157481},

abstract = {Silicon carbide nanostructures have been widely studied due to their potential technological applications. However, the theoretical characterization, especially the effect of the surface on the mechanical properties of this material is still underexplored. In this work, we report the electronic and mechanical properties of 3C-SiC nanopores with different pore surfaces and different passivation schemes using a density functional theory approach and the supercell technique. The nanopores were modeled by removing columns of atoms in the [001] direction, thus creating four types of pores, two with an Only C or Si pore and two with a C or Si-Rich pore surface. All surfaces were passivated with hydrogen, then some atoms of H were replaced with fluorine and chlorine. Results show that pores with a higher concentration of C on the surface have a larger bandgap compared with the Si cases. Moreover, only a few changes can be observed due to passivation. For the mechanical properties the Bulk and Young’s modulus were calculated and show that the Only C structures were the most brittle and, for almost all the pores, the H + Cl passivation improve the Bulk modulus.},

keywords = {DFT, electronic properties, Halogens, Mechanical properties, Porous SiC},

pubstate = {published},

tppubtype = {article}

}

@article{ARELLANO2023106704,

title = {DFT investigation of metal-decorated silicon carbide nanosheets for the adsorption of NH3},

author = {Lucia G. Arellano and Brandom J. Cid and Jos\'{e} E. Santana and Francisco De Santiago and \'{A}lvaro Miranda and Alejandro Trejo and Fernando Salazar and Luis A. P\'{e}rez and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S2352492823013958},

doi = {https://doi.org/10.1016/j.mtcomm.2023.106704},

issn = {2352-4928},

year  = {2023},

date = {2023-01-01},

journal = {Materials Today Communications},

volume = {36},

pages = {106704},

abstract = {The threat that ammonia (NH3) poses in various human activity environments drives the necessity of sensors of higher sensitivity. Two-dimensional (2D) materials have attracted attention for this particular purpose, with 2D silicon carbide being one prospect for this application. However, this potential use has been relatively unexplored. In this work, we study the adsorption of NH3 on pristine and metal (Li, Na, Mg, Ca, Ag, Au, Cu, Pd, and Ti) decorated silicon carbide monolayers (2D-SiC) using a first-principles approach based on Density-Functional Theory. Energetic analyses were performed to determine the enhancement or deterioration of the NH3 adsorption capacities of the 2D-SiC. The results show that the Ag- and Au-decorated monolayers are the best candidates for NH3 capturing due to the large adsorption energies found in these systems.},

keywords = {2D materials, Ammonia, DFT, Monolayer, Sensor, Silicon carbide},

pubstate = {published},

tppubtype = {article}

}

@article{Sosa2022,

title = {NH3 capture and detection by metal-decorated germanene: a DFT study},

author = {Akari Narayama Sosa and Jos\'{e} Eduardo Santana and \'{A}lvaro Miranda and Luis Antonio P\'{e}rez and Alejandro Trejo and Fernando Salazar and Miguel Cruz-Irisson},

url = {https://doi.org/10.1007/s10853-022-06955-w},

doi = {10.1007/s10853-022-06955-w},

issn = {1573-4803},

year  = {2022},

date = {2022-05-01},

journal = {Journal of Materials Science},

volume = {57},

number = {18},

pages = {8516-8529},

abstract = {We report an investigation of the adsorption of ammonia (NH3) on pristine, alkali (Li, Na, K), alkaline earth (Mg, Ca), and transition metal (Sc, Pd, and Ag) decorated germanene using a first-principles approach based on density-functional theory (DFT). The most stable adsorption geometries, adsorption energies, and charge transfers of NH3 adsorbed on pristine and metal-decorated germanene are thoroughly discussed. First, the NH3 adsorption on pristine germanene was considered, and subsequently, the NH3 adsorption on metal-decorated germanene was studied. Our calculations found that the NH3 is weakly adsorbed on pristine germanene. All metals improved the adsorption properties of pristine germanene. In particular, Sc, Mg, and Li atoms showed significantly enhanced interactions between NH3 and germanene. In general, the electronic and adsorption properties demonstrated that metal-decorated germanene is superior to pristine germanene for the adsorption of NH3 molecules. Changes in the work function due to adsorption of NH3 molecule on the metal-decorated germanene were also calculated. Adsorption energy and desorption time results show that Sc-decorated germanene could trap this dangerous molecule at room temperature.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Marcos-Viquez2022,

title = {Adsorption of diatomic gas molecules on transition-metal-decorated GeC monolayers},

author = {Alma L. Marcos-Viquez and Luc\'{i}a G. Arellano and \'{A}lvaro Miranda and Miguel Cruz-Irisson and Luis A. P\'{e}rez},

url = {https://doi.org/10.1007/s10853-021-06827-9},

doi = {10.1007/s10853-021-06827-9},

issn = {1573-4803},

year  = {2022},

date = {2022-05-01},

journal = {Journal of Materials Science},

volume = {57},

number = {18},

pages = {8455-8463},

abstract = {In this work, we study the adsorption of O2, N2 and NO molecules on graphene-like germanium carbide monolayers (2DGeC) decorated with transition metal (TM) atoms (Au, Ag and Cu) using density functional calculations. The results show that, in comparison with the pristine 2DGeC, the TM adatoms enhance the adsorption of these molecules, except for N2 on Au-2DGeC and Ag-2DGeC. The largest increment of adsorption energy (EA) for the studied molecules is found for the Cu-adatom case, followed by the Ag and Au ones, in decreasing order of EA. Moreover, the metal-decorated 2DGeC monolayers give electronic charge to the adsorbed molecules, which weakens the molecule bond. In all the TM-decorated 2DGeC, the N2 molecule has the smallest values of EA, in comparison with the other studied molecules. Finally, since NO has the largest EA in comparison with those of O2 and N2 on the TM-decorated 2DGeC, these nanosheets could be used as NO traps to fight air pollution.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{https://doi.org/10.1002/er.8378,

title = {Tunable electronic properties of silicon nanowires as sodium-battery anodes},

author = {Lucia Guadalupe Arellano and Fernando Salazar and \'{A}lvaro Miranda and Alejandro Trejo and Luis Antonio P\'{e}rez and Jun Nakamura and Miguel Cruz-Irisson},

url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/er.8378},

doi = {https://doi.org/10.1002/er.8378},

year  = {2022},

date = {2022-01-01},

journal = {International Journal of Energy Research},

volume = {46},

number = {12},

pages = {17151-17162},

abstract = {Summary Although materials for lithium-ion batteries have been extensively studied, alternatives such as sodium-ion batteries have acquired a renewed interest due to the abundance of Na compared to Li. However, the investigation of new materials for Na battery anodes is still in progress. In this work, a density functional study of the electronic properties of hydrogen passivated silicon nanowires (H-SiNWs) with interstitial Na atoms is presented. The studied H-SiNWs are grown along the [001] crystallographic direction and have a diameter close to 2.5 nm. Moreover, from 1 to 12 interstitial Na atoms per H-SiNW unit cell were considered. The results reveal that the former semiconducting nanowires become metallic for all the Na concentrations, even for the case of a single Na atom. The formation energy diminishes as a function of the concentration of Na atoms, revealing a loss of energetic stability since the size of the Na atoms strongly modify the Si-Si bonds. Moreover, when the Na atoms are removed from the metallic sodiated H-SiNW and relaxed again, for concentrations between 1 and 8 Na atoms, the resulting structure corresponds to the original H-SiNW one, indicating that the Na insertion/extraction process is a reversible one. In contrast, for concentrations between 10 and 12 Na atoms, the structure that results from removing of these Na atoms has a different atomic arrangement, in comparison with the initial H-SiNW, and also smaller band gap. These results open the possibility to consider the H-SiNWs as potential anodic materials in sodium rechargeable batteries.},

keywords = {DFT, Silicon nanowires, sodium-ion batteries},

pubstate = {published},

tppubtype = {article}

}

@article{CUEVAS2022115372,

title = {Theoretical approach to the phonon modes of GaSb nanowires},

author = {J. L. Cuevas and M. Ojeda and M. Calvino and A. Trejo and F. Salazar and A. Miranda and L. A. Perez and M. Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S1386947722002077},

doi = {https://doi.org/10.1016/j.physe.2022.115372},

issn = {1386-9477},

year  = {2022},

date = {2022-01-01},

journal = {Physica E: Low-dimensional Systems and Nanostructures},

volume = {143},

pages = {115372},

abstract = {Gallium Antimonide nanowires (GaSbNWs) have attracted much attention due to their possible applications in mid infrared detectors, however, there are only few theoretical investigations about this material and almost none regarding its vibrational properties. In this work the phonon modes of GaSbNWs were studied using the density functional theory with the finite displacement supercell scheme. The nanowires are modeled by removing atoms outside from a circumference along the [1 1 1] direction. All surface dangling bonds were passivated with hydrogen atoms. The results show that the expected red-shift of the highest frequency modes of GaSb are hindered by low frequency H bond bending modes. Three clearly distinguishable frequency intervals were observed: One with vibrations whose main contribution come from the Ga and Sb nanowire atoms, the second interval with main contributions from H bending modes and finally a high frequency interval where the main contributions come from H stretching modes. Also, it was observed that the radial breathing mode (RBM) decreases when the nanowire diameter increases, while the contrary tendency is observed with their specific heat (the specific heat increases as the nanowire diameter increases), except in the low temperature region where the lower diameters have higher specific heat values. These results could be important for the characterization of these nanowires with IR and Raman techniques.},

keywords = {DFT, Gallium Antimonide, Nanowires, Phonons},

pubstate = {published},

tppubtype = {article}

}

@article{https://doi.org/10.1002/er.7754,

title = {Sodium effects on the electronic and structural properties of porous silicon for energy storage},

author = {Israel Gonz\'{a}lez and Jorge Pilo and Alejandro Trejo and \'{A}lvaro Miranda and Fernando Salazar and Roc\'{i}o Nava and Miguel Cruz-Irisson},

url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/er.7754},

doi = {https://doi.org/10.1002/er.7754},

year  = {2022},

date = {2022-01-01},

journal = {International Journal of Energy Research},

volume = {46},

number = {7},

pages = {8760-8780},

abstract = {Summary Porous silicon is a promising anode material in Na-ion batteries, however, there are still no theoretical studies describing the Na storage mechanism within this material. In this work, we present a density functional theory study on the effects of interstitial and substitutional Na atoms on the electronic and structural properties of hydrogen-passivated porous silicon (pSiH). The results show that the substitutional Na reduces the band gap, while the interstitial Na induces metallic properties on the pSiH. The diffusion analysis by the nudged elastic band scheme, reveals that the interstitial Na atoms migrate from the silicon lattice to the pore surface, while the pSiH energy barrier decreases by 20.42% relative to the bulk silicon energy barrier value. Finally, the hydrogenated surface proves to be beneficial for both Na adsorption and diffusion. These results could be important for understanding the storage and diffusion mechanism of Na on pSiH .},

keywords = {DFT, Na-batteries, NEB, porous silicon},

pubstate = {published},

tppubtype = {article}

}

@article{D1DT04041C,

title = {Impact of alkaline-earth doping on electronic properties of the photovoltaic perovskite CsSnI3: insights from a DFT perspective},

author = {Iv\'{a}n \"{O}rnelas-Cruz and Israel Gonz\'{a}lez and Jorge Pilo and Alejandro Trejo and Ra\'{u}l Oviedo-Roa and Miguel" Cruz-Irisson},

url = {http://dx.doi.org/10.1039/D1DT04041C},

doi = {10.1039/D1DT04041C},

year  = {2022},

date = {2022-01-01},

journal = {Dalton Trans.},

volume = {51},

issue = {17},

pages = {6607-6621},

publisher = {The Royal Society of Chemistry},

abstract = {The oxidation of Sn(ii) to the more stable Sn(iv) degrades the photovoltaic perovskite material CsSnI3; however, this problem can be counteracted via alkaline-earth (AE) doping. In this work, the electronic properties of CsSn1−xAExI3, with x = 0 and 0.25, and AE = Mg and Ca, were investigated via Density Functional Theory. It is proven that the synthetic reactions of all these perovskites are thermodynamically viable. Besides, a slight strengthening in the metal\textendashhalide bonds is found in the Mg-doped perovskite; consequently, it exhibits the greatest bulk modulus. Nevertheless, the opposite occurrs with the Ca-doped perovskite, which has the smallest bulk modulus due to the weakening of its metal\textendashhalide bonds. The calculated bandgaps for CsSnI3, Mg-doped and Ca-doped perovskites are 1.11, 1.32 and 1.55 eV, respectively, remaining remarkably close to the best photovoltaic-performing value for single-junction solar cells of 1.34 eV. Nevertheless, an indirect bandgap was predicted under Mg-doping. These results support the possibility of implementing AE-doped perovskites as absorber materials in single-junction solar cells, which can deliver higher output voltages than that using CsSnI3. Finally, it was found that Sr or Ba doping could result in semiconductors with bandgaps close to 2.0 eV.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{CID202241310,

title = {Enhanced reversible hydrogen storage performance of light metal-decorated boron-doped siligene: A DFT study},

author = {Brandom Jhoseph Cid and Akari Narayama Sosa and \'{A}lvaro Miranda and Luis Antonio P\'{e}rez and Fernando Salazar and Arturo I. Mtz-Enriquez and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0360319922012332},

doi = {https://doi.org/10.1016/j.ijhydene.2022.03.153},

issn = {0360-3199},

year  = {2022},

date = {2022-01-01},

journal = {International Journal of Hydrogen Energy},

volume = {47},

number = {97},

pages = {41310-41319},

abstract = {The use of nanomaterials for hydrogen storage could play a very important role in the large-scale utilization of hydrogen as an energy source. However, nowadays several potential hydrogen storage nanomaterials do not have a large gravimetric density and stability at room temperature. In this work, we have investigated the hydrogen storage performances of Na-, K- and Ca-decorated B-doped siligene monolayer (BSiGeML) using density functional theory calculations. The results show that boron doping improves the interaction between the metal adatom and the siligene monolayer (SiGeML). The K- and Ca-decorated BSiGeMLs can bind up to seven H2 molecules per metal adatom, whereas Na-decorated BSiGeML only adsorb four H2 molecules per adsorption site. The effect of temperature and pressure on the hydrogen storage capacity of BSiGeMLs was also evaluated. At room temperature, all the H2 molecules adsorbed on Na-, and Ca-decorated BSiGeML are stable at mild pressure. The metal decoration of both sides of BSiGeML may lead to hydrogen gravimetric densities exceeding the target of 5.5 wt% proposed by DOE for the year 2025. K- and Ca-decorated BSiGeML could be efficient hydrogen molecular storage media compared to undoped SiGeML and other 2D pristine materials.},

note = {Future Energy \& Materials},

keywords = {2D materials, Doping, Energy storage, Hydrogen storage, Siligene},

pubstate = {published},

tppubtype = {article}

}

@article{MARCOSVIQUEZ202241329,

title = {Tin carbide monolayers decorated with alkali metal atoms for hydrogen storage},

author = {Alma L. Marcos-Viquez and A. Miranda and Miguel Cruz-Irisson and Luis A. P\'{e}rez},

url = {https://www.sciencedirect.com/science/article/pii/S0360319921049648},

doi = {https://doi.org/10.1016/j.ijhydene.2021.12.204},

issn = {0360-3199},

year  = {2022},

date = {2022-01-01},

journal = {International Journal of Hydrogen Energy},

volume = {47},

number = {97},

pages = {41329-41335},

abstract = {In this work, a density-functional study of hydrogen storage in tin carbide monolayers (2DSnC) decorated with alkali metals atoms (AM) such as Li, Na, and K, is reported. The most stable adsorption site for these alkali metal atoms on the 2DSnC is above a tin atom. The results indicate that the alkali metal atoms are chemisorbed on the 2DSnC and that electronic charge is transferred from the decorating atom to the 2DSnC. In all the studied cases, the hydrogen molecules are physisorbed on the AM-2DSnC (AM = Li, Na, and K) complexes and then these systems could be used for hydrogen storage. In particular, it is found that the K-2DSnC monolayer has the highest hydrogen-storage capacity, where a single potassium atom can adsorb up to 6 hydrogen molecules, followed by Na-2DSnC with 5 hydrogen molecules and Li-2DSnC with 3 hydrogen molecules. Finally, it can be estimated that when the K, Na and Li adatom-coverings respectively attain 40%, 44% and 70%, the hydrogen-storage gravimetric capacities of AM-2DSnC could overcome the US-DOE recommended target of 5.5 wt% for onboard automotive systems.},

note = {Future Energy \& Materials},

keywords = {Alkali metal adatoms, Density functional calculations, Hydrogen storage, Metal-decorated tin carbide nanosheets, Two-dimensional nanostructures},

pubstate = {published},

tppubtype = {article}

}

@article{GONZALEZ2022110956,

title = {Low lattice thermal conductance obtained by controllable quasiperiodic long-range disorder in ternary atomic ribbons with rock-salt structure},

author = {J. E. Gonz\'{a}lez and C\'{e}sar G. Galv\'{a}n and F. Salazar and M. Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0022369722003791},

doi = {https://doi.org/10.1016/j.jpcs.2022.110956},

issn = {0022-3697},

year  = {2022},

date = {2022-01-01},

journal = {Journal of Physics and Chemistry of Solids},

volume = {170},

pages = {110956},

abstract = {To achieve thermoelectric devices with high efficiency requires developing routes to modulate the vibrational properties of semiconductor materials that allow obtaining low lattice thermal conductance. Several efforts have been made to understand the thermal conduction of thermoelectric materials. In particular, semiconductors with rock-salt structure are promising for thermoelectric applications because of the possibility of modifying their thermal properties by composition and the huge quantity of compounds that can be built with this kind of structure. In this work, we investigate how the vibrational properties of ternary atomic ribbons with rock-salt structure can be controlled by Fibonacci long-range mass disorder structure. The study is performed through a real space analysis using the thermal Kubo\textendashGreenwood formula and the Born interaction potential. The results show how the transmission of acoustical phonons with low frequency can be blocked by Fibonacci structures, leading to a progressive decrease of the lattice thermal conductance, which is favorable for thermoelectric applications.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{SOSA2022101886,

title = {Transition metal-decorated germanene for NO, N2 and O2 sensing: A DFT study},

author = {Akari N. Sosa and Jos\'{e} E. Santana and \'{A}lvaro Miranda and Luis A. P\'{e}rez and Riccardo Rurali and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S2468023022001651},

doi = {https://doi.org/10.1016/j.surfin.2022.101886},

issn = {2468-0230},

year  = {2022},

date = {2022-01-01},

journal = {Surfaces and Interfaces},

volume = {30},

pages = {101886},

abstract = {Detecting hazardous and toxic gasses is important to avoid harmful effects on human health and two-dimensional nanostructures have emerged as candidate materials for sensing or scavenging gasses. The chemical interactions between NO, O2, and N2 gas molecules and Cu-, Ag-, and Au-decorated germanene were investigated by using density functional theory simulations, and the potential applications as gas sensors or scavengers were addressed. Except for O2, the studied molecules were physisorbed on pristine germanene, where the most favorable adsorption site is located at the middle of the lattice hexagon, with adsorption energy values ranging from 0.09 eV for the N2 to 0.49 eV for NO adsorbed through the N atom. The results also show that the studied molecules have larger adsorption energies in Cu-, Ag-, and Au-decorated germanene, with energy values of 0.4 eV for the N2 molecule and 1.04 eV for the NO molecule. Therefore, molecule-metal-germanene complexes are more energetically favorable than the molecule-germanene ones and are thus predicted to have an enhanced sensing capability. The larger NO adsorption energies on Ag- (0.8 eV) and Au- (0.87 eV) decorated germanene, in comparison with those of N2 (around 0.1 eV) and O2 (around 0.37 eV), indicate their good selectivity towards NO. To estimate their potential application as NO sensors in gas-insulated switchgear, we calculated the work function and desorption time of the studied molecules adsorbed on Cu-, Ag-, and Au-decorated germanene, obtaining considerable changes in the work function (around 0.5 eV) between the different molecules adsorbed on Cu-decorated germanene, and recovery times of the order of seconds at a temperature of 400 K. The results suggest that metal-germanene complexes are stable in ambient conditions and they are good candidates for sensing and scavenging nitrogen monoxide.},

keywords = {DFT, Germanene, metal-decoration, nitrogen monoxide, Sensing},

pubstate = {published},

tppubtype = {article}

}

@article{DeSantiago_2021,

title = {Tunable thermal conductivity of ternary alloy semiconductors from first-principles},

author = {Francisco De Santiago and Mart\'{i} Raya-Moreno and \'{A}lvaro Miranda and Miguel Cruz-Irisson and Xavier Cartoix\`{a} and Riccardo Rurali},

url = {https://dx.doi.org/10.1088/1361-6463/ac036d},

doi = {10.1088/1361-6463/ac036d},

year  = {2021},

date = {2021-06-01},

journal = {Journal of Physics D: Applied Physics},

volume = {54},

number = {33},

pages = {335302},

publisher = {IOP Publishing},

abstract = {We compute the thermal conductivity, κ, of five representative III\textendashV ternary alloys\textemdashnamely In x Ga1 − x As, GaAs1 − x P x , InAs1 − x Sb x , GaAs1 − x N x , and GaP1 − x N x \textemdashin the whole range of compositions, and in zincblende and wurtzite crystal phases, using a first-principles approach and solving the phonon Boltzmann transport equation beyond the relaxation time approximation. We discuss the tunability of the thermal conductivity with the composition of the alloy, reporting a steep decrease in the thermal conductivity, followed by a wide plateau and a steep increase common in systems with lattice disorder. We also test the approximation consisting in considering impurities at small values of x as bare mass defects, neglecting their chemical identity, and discuss its validity.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{SOSA2021130201,

title = {CO and CO2 adsorption performance of transition metal-functionalized germanene},

author = {Akari Narayama Sosa and \'{A}lvaro Miranda and Luis Antonio P\'{e}rez and Alejandro Trejo and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0167577X21008983},

doi = {https://doi.org/10.1016/j.matlet.2021.130201},

issn = {0167-577X},

year  = {2021},

date = {2021-01-01},

journal = {Materials Letters},

volume = {300},

pages = {130201},

abstract = {In this work, the pristine and transition metal (TM)-functionalized germanene are investigated for sensing applications. Firstly, the detection of CO and CO2 molecules by pristine germanene is considered, and the numerical results show that adsorption energy values are in the physisorption range. Then, the adsorption of CO and CO2 molecules on Cu-, Ag-, and Au-functionalized germanene is studied. Results show that germanene functionalization with TM atoms considerably improves the interaction towards CO molecule when bound through the C atom [CO(C)], in the chemisorption range. On the other hand, numerical results show that the germanene sensing capabilities for the CO(O) and CO2 molecules do not improve with TM, these were adsorbed in the physisorption interval. Results suggest that the TM-functionalized germanene can have potential uses in CO sensing.},

keywords = {2D materials, Adsorption energy, DFT, Gas sensing, Germanene, Sensors},

pubstate = {published},

tppubtype = {article}

}

@article{ARELLANO202129261,

title = {Ab initio study of hydrogen storage on metal-decorated GeC monolayers},

author = {Lucia Guadalupe Arellano and Francisco De Santiago and \'{A}lvaro Miranda and Luis Antonio P\'{e}rez and Fernando Salazar and Alejandro Trejo and Jun Nakamura and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S036031992101555X},

doi = {https://doi.org/10.1016/j.ijhydene.2021.04.135},

issn = {0360-3199},

year  = {2021},

date = {2021-01-01},

journal = {International Journal of Hydrogen Energy},

volume = {46},

number = {57},

pages = {29261-29271},

abstract = {Bidimensional nanostructures have been proposed as hydrogen-storage systems owing to their large surface-to-volume ratios. Germanium carbide monolayers (GeC-MLs) can offer attractive opportunities for H2 adsorption compared to graphene. However, this possibility has not been explored in detail. In this work, the adsorption of H2 molecules on GeC-MLs decorated with alkali metal (AM) and alkaline earth metal (AEM) adatoms was investigated using the density functional theory. Results showed that the AM adatoms were chemisorbed on the GeC-ML, whereas AEM adatoms were physisorbed. The H2 molecules presented negligible adsorption energies on the weakly adsorbed AEM adatoms. Conversely, the AM adatoms improved the H2 adsorption, possibly due to a large charge transfer from the adatoms to the GeC-ML. The potassium-decorated GeC-ML exhibited the most optimal H2 storage capacity, adsorbing up to six molecules and with a lower possibility of forming metal clusters than the other studied cases. These results may aid in the development of new efficient hydrogen-storage materials.},

note = {HYDROGEN ENERGY SYSTEMS},

keywords = {2D materials, Alkali metals, DFT, Germanium carbide, Hydrogen storage, Renewable energy},

pubstate = {published},

tppubtype = {article}

}

@article{SOSA202129348,

title = {Light metal functionalized two-dimensional siligene for high capacity hydrogen storage: DFT study},

author = {Akari Narayama Sosa and Brandom Jhoseph Cid and \'{A}lvaro Miranda and Luis Antonio P\'{e}rez and Fernando Salazar and Alejandro Trejo and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0360319920340246},

doi = {https://doi.org/10.1016/j.ijhydene.2020.10.175},

issn = {0360-3199},

year  = {2021},

date = {2021-01-01},

journal = {International Journal of Hydrogen Energy},

volume = {46},

number = {57},

pages = {29348-29360},

abstract = {In this work, the hydrogen storage capacities of two-dimensional siligene (2D-SiGe) functionalized with alkali metal (AM) and alkali-earth metal (AEM) atoms were studied using density functional theory calculations. One AM (Li, Na, K) or AEM (Be, Mg, Ca) atom was placed on the 2D-SiGe surface, and several H2 molecules were placed in the vicinity of the adatom. The results demonstrate that the most favorable siligene site for the adsorption of Li, Na, K and Be atoms is the hollow site, while for the Mg and Ca atoms is the down site. The AM atoms are the only ones with considerable binding energies on the SiGe nanosheets. Pristine 2D-SiGe slightly adsorbs one H2 molecule per hollow site and, therefore, it is not suitable for hydrogen storage. In some of the AM- and AEM-decorated 2D-SiGe, several hydrogen molecules can be physisorbed. In particular, the Na-, K- and Ca-functionalized 2D-SiGe can adsorb six hydrogen molecules, whereas Li and Mg atoms adsorbed three hydrogen molecules, and the Be adatom only adsorbed one hydrogen molecule. The complexes formed by hydrogen molecules adsorbed on the analyzed metal decorated 2D-SiGe are energetically stable, indicating that functionalized 2D-SiGe could be an efficient molecular hydrogen storage media.},

note = {HYDROGEN ENERGY SYSTEMS},

keywords = {2D materials, Alkali metals, DFT, Hydrogen storage, Renewable energy, Siligene},

pubstate = {published},

tppubtype = {article}

}

@article{SOSA202120245,

title = {Alkali and transition metal atom-functionalized germanene for hydrogen storage: A DFT investigation},

author = {Akari Narayama Sosa and Francisco Santiago and \'{A}lvaro Miranda and Alejandro Trejo and Fernando Salazar and Luis Antonio P\'{e}rez and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0360319920315329},

doi = {https://doi.org/10.1016/j.ijhydene.2020.04.129},

issn = {0360-3199},

year  = {2021},

date = {2021-01-01},

journal = {International Journal of Hydrogen Energy},

volume = {46},

number = {38},

pages = {20245-20256},

abstract = {In this work, we have performed density functional theory-based calculations to study the adsorption of H2 molecules on germanene decorated with alkali atoms (AM) and transition metal atoms (TM). The cohesive energy indicates that interaction between AM (TM) atoms and germanene is strong. The values of the adsorption energies of H2 molecules on the AM or TM atoms are in the range physisorption. The K-decorated germanene has the largest storage capacity, being able to bind up to six H2 molecules, whereas the Au and Na atoms adsorbed five and four H2 molecules, respectively. Li and Ag atoms can bind a maximum of three H2 molecules, while Cu-decorated germanene only adsorbed one H2 molecule. Formation energies show that all the studied cases of H2 molecules adsorbed on AM and TM atom-decorated germanene are energetically favorable. These results indicate that decorated germanene can serve as a hydrogen storage system.},

note = {International Journal of Hydrogen Energy Special Issue devoted to the 32nd International Conference ECOS 2019},

keywords = {2D materials, Decoration, Density Functional Theory, Germanene, Hydrogen storage, Renewable energy storage},

pubstate = {published},

tppubtype = {article}

}

@article{ARELLANO202120266,

title = {Hydrogen storage capacities of alkali and alkaline-earth metal atoms on SiC monolayer: A first-principles study},

author = {Luc\'{i}a G. Arellano and Francisco Santiago and \'{A}lvaro Miranda and Fernando Salazar and Alejandro Trejo and Luis A. P\'{e}rez and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0360319920310144},

doi = {https://doi.org/10.1016/j.ijhydene.2020.03.078},

issn = {0360-3199},

year  = {2021},

date = {2021-01-01},

journal = {International Journal of Hydrogen Energy},

volume = {46},

number = {38},

pages = {20266-20279},

abstract = {A detailed theoretical Density-Functional-Theory-based investigation of hydrogen adsorption on silicon carbide monolayers (SiC-ML) decorated with alkali and alkaline-earth metal atoms is presented. The results show that the favourable position for all adsorbed metal atoms is above a Si atom. These metal atoms are chemisorbed to the SiC-ML, except for Mg which is physisorbed. The adsorbed atoms act in turn as adsorption sites for H2 molecules. The single-sided K-functionalized SiC-ML can store up to six H2 molecules. For double-side K-decorated SiC-ML, up to ten H2 molecules can be captured. In all cases, the H2 molecules are physisorbed. This is beneficial because the breaking of chemical bonds, which otherwise would be needed to make use of the stored H2, is energetically expensive. These results find decorated SiC-ML as a promising material for hydrogen storage systems.},

note = {International Journal of Hydrogen Energy Special Issue devoted to the 32nd International Conference ECOS 2019},

keywords = {2D monolayers, Adsorption energy, DFT, Hydrogen storage, Silicon carbide},

pubstate = {published},

tppubtype = {article}

}

@article{D0MA00884B,

title = {Fluorinated porous silicon as sensor material for environmentally toxic gases: a first-principles study},

author = {Jos\'{e} Eduardo Santana and Francisco Santiago and \'{A}lvaro Miranda and Luis Antonio P\'{e}rez and Fernando Salazar and Alejandro Trejo and Miguel Cruz-Irisson},

url = {http://dx.doi.org/10.1039/D0MA00884B},

doi = {10.1039/D0MA00884B},

year  = {2021},

date = {2021-01-01},

journal = {Mater. Adv.},

volume = {2},

issue = {3},

pages = {1072-1082},

publisher = {RSC},

abstract = {By using Density Functional Theory, the effect of adsorbed gas molecules on the electronic properties of fluorine passivated porous silicon (pSi) is investigated. A silicon nanopore is created by removing columns of atoms along the [001] crystallographic axis from a supercell of the bulk Si crystal. The Si dangling bonds of the generated pore are saturated with fluorine atoms except for the sites where gas molecules of NO, NO2 and SO2 are adsorbed. The adsorption energies, electronic densities of states and band structures of the different complexes formed by the nanopore and the adsorbed molecules are calculated and compared with previously reported results obtained for hydrogen-passivated pSi. The energy band gaps of the pSi-molecule complexes depend on the adsorbed species, opening the possibility of gas molecule recognition. The molecule adsorption energy is stronger for NO2. The understanding of molecule adsorption on silicon nanopores could lead to the development of novel sensing devices of environmentally hazardous gases.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{ARELLANO2021130239,

title = {Hydrogen storage on bidimensional GeC with transition metal adatoms},

author = {Lucia G. Arellano and Francisco De Santiago and \'{A}lvaro Miranda and Ivonne J. Hern\'{a}ndez-Hern\'{a}ndez and Luis A. P\'{e}rez and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0167577X21009368},

doi = {https://doi.org/10.1016/j.matlet.2021.130239},

issn = {0167-577X},

year  = {2021},

date = {2021-01-01},

journal = {Materials Letters},

volume = {300},

pages = {130239},

abstract = {A density functional theory study is undertaken to explore H2 physisorption in bidimensional germanium carbide (GeC) decorated with transition metals (Cu, Ag and Au). Adsorption energy results show that the Au and Cu metal atoms are preferentially chemisorbed to a carbon atom, while Ag is adsorbed over a Ge\textendashC bond. Hydrogen molecules are weakly adsorbed to the adatom, and the interaction mainly occurs between the charge density of the H\textendashH bond and the slightly positively charged adatom. The Ag-decorated GeC monolayer possesses the maximum hydrogen storage capacity with seven molecules adsorbed on the adatom. We think this work could encourage theoretical and experimental studies of the GeC monolayer and related two-dimensional materials for green energy development applications.},

keywords = {DFT, Germanium carbide, Green energy, Hydrogen storage, Transition metals, Two-dimensional materials},

pubstate = {published},

tppubtype = {article}

}

@article{MARCOSVIQUEZ2021130030,

title = {Gas adsorption enhancement on transition-metal-decorated tin carbide monolayers},

author = {Alma L. Marcos-Viquez and \'{A}lvaro Miranda and Miguel Cruz-Irisson and Luis A. P\'{e}rez},

url = {https://www.sciencedirect.com/science/article/pii/S0167577X21007266},

doi = {https://doi.org/10.1016/j.matlet.2021.130030},

issn = {0167-577X},

year  = {2021},

date = {2021-01-01},

journal = {Materials Letters},

volume = {298},

pages = {130030},

abstract = {The interaction between diatomic gas molecules O2, N2 and NO with tin carbide monolayers (2DSnC) decorated with transition-metal (TM) atoms (Au, Ag and Cu) was investigated by using density functional calculations. The results indicate that the addition of TM atoms to 2DSnC considerably improves the molecule adsorption energy. The most stable molecule adsorption configurations and energies, together with the electronic properties of the molecule-TM-2DSnC complexes, were also obtained. The Cu adatom has the largest molecule adsorption-energy enhancement followed, in decreasing order, by Au and Ag. In general, NO is strongly bound to TM-2DSnC, followed by O2. Moreover, when O2 interacts with the Au adatom, it is spontaneously dissociated. N2 is, in comparison with the other studied molecules, less strongly adsorbed to TM-decorated 2DSnC. The results indicate that Cu- and Ag-2DSnC could be used as NO traps.},

keywords = {Electronic materials, Gas sensors, Tin carbide monolayers, Transition metal adatoms},

pubstate = {published},

tppubtype = {article}

}

@article{SANTANA2021130016,

title = {Adsorption of urea on metal-functionalized Si nanowires for a potential uremia diagnosis: A DFT study},

author = {Jos\'{e} Eduardo Santana and Francisco De Santiago and Maria Isabel Iturrios and \'{A}lvaro Miranda and Luis Antonio P\'{e}rez and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0167577X21007126},

doi = {https://doi.org/10.1016/j.matlet.2021.130016},

issn = {0167-577X},

year  = {2021},

date = {2021-01-01},

journal = {Materials Letters},

volume = {298},

pages = {130016},

abstract = {Uncommon concentrations of urea in the human body could be indicative of uremia, which is a symptom of kidney malfunctioning. In this paper, we investigate the effect of urea adsorption on Ag-, Au-, and Cu-decorated silicon nanowires (SiNW). We considered SiNWs grown along the [100] direction with (110) exposed surfaces and passivated with hydrogen. For the metal-decorated SiNWs, an H passivating atom on the SiNW surface is replaced by an Au, Ag, or Cu atom, which is used as adsorption site for the urea molecule. The results show that the metalized SiNWs are capable to adsorb the urea molecule, having the highest adsorption energy for the Cu case, followed by the Ag and Au cases. The adsorption of urea on the metal-decorated SiNW modifies the electronic states inside the valence and conduction bands, this hybridization confirms that the urea molecule is adsorbed by the metalized SiNW. Also, a noticeable change in the work function of the systems, provoked by the urea adsorption, could allow the detection of the molecule. These nanostructures could be used for urea capture and detection, which could lead to a potential nanosensor for the diagnosis of uremia.},

keywords = {DFT, Kidney disease, Sensor, Silicon nanowires, Urea},

pubstate = {published},

tppubtype = {article}

}

@article{MARCOSVIQUEZ2021129751,

title = {Tin carbide monolayers as potential gas sensors},

author = {Alma L. Marcos-Viquez and \'{A}lvaro Miranda and Miguel Cruz-Irisson and Luis A. P\'{e}rez},

url = {https://www.sciencedirect.com/science/article/pii/S0167577X2100447X},

doi = {https://doi.org/10.1016/j.matlet.2021.129751},

issn = {0167-577X},

year  = {2021},

date = {2021-01-01},

journal = {Materials Letters},

volume = {294},

pages = {129751},

abstract = {We theoretically address the capability of tin carbide (SnC) nanosheets, with honeycomb lattice structure, as molecular sensors or scavengers of NO, NO2 and SO2 toxic gas molecules, by using density functional calculations. The results show that NO, NO2 and SO2 molecules are chemisorbed on the SnC monolayers (2DSnC) with adsorption energies larger than 1 eV, where the stable configurations correspond to those where the N or S atoms are bonded to the C atom of the nanosheet. Moreover, NO2 can also be dissociated into NO and O on the 2DSnC, with an energy gain of 2.7 eV. Finally, the electronic properties of the formed complexes are discussed. In particular, the values of their band gaps could, in principle, allow the discrimination between sulphur and nitric oxides.},

keywords = {Electronic materials, Gas sensors, Nanocrystalline materials, NO dissociation, Tin carbide monolayers},

pubstate = {published},

tppubtype = {article}

}

@article{CID2021129743,

title = {Hydrogen storage on metal decorated pristine siligene and metal decorated boron-doped siligene},

author = {Brandom Jhoseph Cid and Akari Narayama Sosa and \'{A}lvaro Miranda and Luis A. P\'{e}rez and Fernando Salazar and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0167577X21004390},

doi = {https://doi.org/10.1016/j.matlet.2021.129743},

issn = {0167-577X},

year  = {2021},

date = {2021-01-01},

journal = {Materials Letters},

volume = {293},

pages = {129743},

abstract = {In this work, two schemes were studied to improve hydrogen storage on metal decorated two-dimensional siligene (SiGe). In the first one, Li-, Sc- and Ti atoms are adsorbed on pristine siligene monolayer (SiGeML), while in the second scheme Li-, Sc- and Ti atoms decorated B-doped siligene monolayer (BSiGeML). The results show that boron doping improves the interaction between metal atom and SiGeML. The numerical results indicate that H2 molecules are slightly physisorbed on the Li atom, while they are strongly physisorbed on Sc- and Ti-decorated monolayers. The Sc-decorated BSiGeML and Sc-decorated SiGeML have the highest hydrogen storage capacity, both systems were capable of storing five H2 molecules, whereas Li- and Ti-decorated BSiGeML and Ti-decorated SiGeML can adsorb up to four H2 molecules. SiGeML and BSiGeML decorated with Sc atoms could have potential as efficient hydrogen molecular storage media.},

keywords = {2D materials, Doping, Energy storage, Hydrogen storage, Siligene},

pubstate = {published},

tppubtype = {article}

}

@article{MARCOSVIQUEZ2021129675,

title = {Molecular oxygen dissociation on tin carbide monolayers with gold adatoms},

author = {Alma L. Marcos-Viquez and \'{A}lvaro Miranda and Miguel Cruz-Irisson and Luis A. P\'{e}rez},

url = {https://www.sciencedirect.com/science/article/pii/S0167577X21003712},

doi = {https://doi.org/10.1016/j.matlet.2021.129675},

issn = {0167-577X},

year  = {2021},

date = {2021-01-01},

journal = {Materials Letters},

volume = {293},

pages = {129675},

abstract = {In this work, the interactions between oxygen molecule O2 with pristine and gold-decorated tin carbide (SnC) monolayers were investigated by using density functional calculations. The results indicate that O2 is adsorbed, with an energy of 0.95 eV, on the pristine SnC nanosheet in a bond-like configuration with each oxygen close to a carbon and a tin atom, respectively. There is a large electronic charge transfer from the SnC monolayer to the O2 molecule, which enlarges the molecule internal bond, indicating an activation towards a peroxo-like state. Also, a gold adatom can strongly bind to the SnC monolayer over a C atom. Furthermore, when O2 interacts with this Au adatom, it is spontaneously dissociated with an energy gain of 1.84 eV and where the final adsorption configuration consists of each oxygen on the top of different tin atoms but sharing the gold one.},

keywords = {Electronic materials, Oxygen dissociation, Single-atom catalysis, Tin carbide monolayers},

pubstate = {published},

tppubtype = {article}

}

@article{DESANTIAGO2021149175,

title = {Silicon nanowires as acetone-adsorptive media for diabetes diagnosis},

author = {Francisco De Santiago and Jos\'{e} Eduardo Santana and \'{A}lvaro Miranda and Luis Antonio P\'{e}rez and Riccardo Rurali and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0169433221002518},

doi = {https://doi.org/10.1016/j.apsusc.2021.149175},

issn = {0169-4332},

year  = {2021},

date = {2021-01-01},

journal = {Applied Surface Science},

volume = {547},

pages = {149175},

abstract = {Early detection of diabetes, a worldwide health issue, is key for its successful treatment. Acetone is a marker of diabetes, and efficient, non-invasive detection can be achieved with the use of nanotechnology. In this paper we investigate the effect of acetone adsorption on the electronic properties of silicon nanowires (SiNWs) by means of density functional theory. We considered hydrogenated SiNWs grown along the [111] bulk Si axis, with group-III impurities (B, Al, Ga), for which both surface substitutional doping and functionalizing schemes are considered. We present an analysis of the adsorption configuration, energetics, and electronic properties of the undoped and doped SiNWs. Upon acetone adsorption, the SiNW without impurities becomes an n-type semiconductor, while most substituted/functionalized cases have their HOMO-LUMO gap tuned, which could be harnessed in optical sensors. Acetone is always chemisorbed, although for the case without impurities, and the Al- and Ga-functionalization schemes, the chemisorption is very weak. These nanostructures could be used for acetone capture and detection, which could lead to applications in the medical treatment of diabetes.},

keywords = {Acetone, DFT, Diabetes, Doping, Sensor, Silicon nanowires},

pubstate = {published},

tppubtype = {article}

}

@article{LuciaArellano2021,

title = {Structural stability of 2D II-V compounds},

author = {Lucia Arellano and Takayuki Suga and Miguel Cruz-Irisson and Jun Nakamura},

doi = {10.11470/jsapmeeting.2021.2.0_1437},

year  = {2021},

date = {2021-01-01},

urldate = {2021-01-01},

journal = {応用物理学会学術講演会講演予稿集},

volume = {2021.2},

pages = {1437-1437},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Bermeo_2020,

title = {Effects of Surface in the IR and Raman Spectrum of Porous Silicon Carbide},

author = {R Bermeo and L. Arellano and A Trejo and F Salazar and M. Calvino and A Miranda and M Cruz-Irisson},

url = {https://dx.doi.org/10.1088/1757-899X/840/1/012009},

doi = {10.1088/1757-899X/840/1/012009},

year  = {2020},

date = {2020-05-01},

journal = {IOP Conference Series: Materials Science and Engineering},

volume = {840},

number = {1},

pages = {012009},

publisher = {IOP Publishing},

abstract = {Porous Silicon carbide has been identified as an attractive material for its use as electrode in supercapacitors, however the theoretical investigations about its properties, specially its vibrational properties, are still scarce. In this work the effect of the Si-C surface ratio on the vibrational properties, IR and Raman spectrum of porous silicon carbide was studied using the first principles density functional perturbation theory. The porous structures were modelled by removing atoms in the [001] direction from an otherwise perfect SiC crystal using the supercell scheme. The morphology of the pores was chosen so there would be more Si or C in the pore surface. The results show that the vibrational properties, and thus the IR and Raman spectrum of the porous SiC change depending if the pore surface is either Si or C rich, having the Si-rich pores more low frequency modes due to its higher mass. Also, the effects of phonon confinement are lessened by the effect of surface passivation, thus indicating that the surface plays an important role in the IR and Raman characterization of these structures.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Arellano_2020,

title = {Electronic properties of [111] hydrogen passivated Ge nanowires with surface substitutional lithium},

author = {L G Arellano and F Salazar and A Trejo Ba\~{n}os and A Miranda and L A P\'{e}rez and M Cruz-Irisson},

url = {https://dx.doi.org/10.1088/1757-899X/840/1/012004},

doi = {10.1088/1757-899X/840/1/012004},

year  = {2020},

date = {2020-05-01},

journal = {IOP Conference Series: Materials Science and Engineering},

volume = {840},

number = {1},

pages = {012004},

publisher = {IOP Publishing},

abstract = {In this work, a density functional theory study of the lithium (Li) effects on the properties of hydrogenated germanium nanowires (H-GeNWs) is developed. In particular, the electronic band structures, densities of states, formation energies, and Li binding energies of H-GeNWs grown along the [111] crystallographic direction with a diamond structure for different concentrations of surface substitutional Li atoms were studied. Ge nanowires with hexagonal cross sections and three different diameters were considered. The results indicate that all studied H-GeNWs maintain a semiconducting behaviour and the size of the energy band gap is a function of the diameter and the concentration of substitutional surface Li atoms. The formation energy analysis reveals than the energy stability of the nanowires increases when the nanowire diameter and the concentration of Li atoms augment. The results of this work give insight of how the electronic properties of H-GeNWs change during the charging process and open the possibility to incorporate them as electrodes in Li-ion batteries.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{ORNELASCRUZ2020109619,

title = {DFT-based study of the bulk tin mixed-halide CsSnI3-xBrx perovskite},

author = {I. Ornelas-Cruz and A. Trejo and R. Oviedo-Roa and F. Salazar and E. Carvajal and A. Miranda and M. Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0927025620301105},

doi = {https://doi.org/10.1016/j.commatsci.2020.109619},

issn = {0927-0256},

year  = {2020},

date = {2020-01-01},

journal = {Computational Materials Science},

volume = {178},

pages = {109619},

abstract = {Metal-halide perovskites compounds, such as CsSnX3 (X = halogen), have attracted a lot of attention as a photovoltaic material due to their astonishing optoelectronic properties, nevertheless, the improvement of its efficiency is still an issue. It has been observed that the mixing of halogens in the perovskite structure increases the compound stability. However, theoretical studies of the effects of this mixing are scarce; by understanding the most stable mixing positions it would be possible to enhance the stability of these structures, which in turn it would help to enhance the performance of a perovskite-based photovoltaic device. Thus, a Density Functional Theory study was performed on the CsSnI3-xBrx perovskite as a function of the bromine concentration (0 ≤ x ≤ 3). The distortions of the octahedral array and the energy gap of each system studied are highly dependent on the position of bromine atoms within the unit-cell. It was observed that stable compounds could be found at x = 0.5, 1.0, and 2.0 due to the strengthening of the metal-halogen bonds. These results could explain the literature-reported enhance of the performance, as a photovoltaic material, of CsSnI3-xBrx with respect to CsSnI3. Besides, non-covalent interactions between halogens and Cs atoms were found. Different energies attributed to such interactions were calculated and revealed that the off-centering of Cs atoms are driven by the countering effect of the I-(1−δ)-Sn-Br-(1+δ) polar bonds within CsSnI3-xBrx. These results give an insight of the properties of the CsSnI3-xBrx alloy and its stability which could be beneficial to the rising field of perovskite photovoltaics.},

keywords = {DFT, Metal-halide, Mixed-halide, Perovskite, Photovoltaic},

pubstate = {published},

tppubtype = {article}

}

@article{GONZALEZ202026321,

title = {Theoretical modelling of porous silicon decorated with metal atoms for hydrogen storage},

author = {Israel Gonz\'{a}lez and Francisco De Santiago and Luc\'{i}a G. Arellano and \'{A}lvaro Miranda and Alejandro Trejo and Fernando Salazar and Miguel Cruz-Irisson},

url = {https://www.sciencedirect.com/science/article/pii/S0360319920318784},

doi = {https://doi.org/10.1016/j.ijhydene.2020.05.097},

issn = {0360-3199},

year  = {2020},

date = {2020-01-01},

journal = {International Journal of Hydrogen Energy},

volume = {45},

number = {49},

pages = {26321-26333},

abstract = {There is experimental evidence suggesting that metal adatoms enhance the physisorption of hydrogen molecules in porous silicon. However, theoretical reports about the physical properties for this material to be suitable for hydrogen storage are scarce. Thus, in this work we employ Density Functional Theory to study the effects of decoration with metals on the hydrogen-adsorption properties on hydrogen-passivated porous silicon. The results indicate that lithium and palladium decorating atoms are strongly bonded to the porous silicon\textemdashpreventing the adverse effects of clusterization\textemdashwhile beryllium is not. Lithium and palladium exhibit physisorption capacity up to 5 and 4 hydrogen molecules per adatom, respectively. In contrast, adsorption of hydrogen molecules in beryllium is too weak as the adatom is not chemisorbed on the surface of the pore. The hydrogen passivation of the pore surface proves to be beneficial for a strong chemisorption of the decorating atoms.},

note = {Progress in Hydrogen Production and Utilization},

keywords = {Beryllium, DFT, Hydrogen storage, Lithium, Palladium, porous silicon},

pubstate = {published},

tppubtype = {article}

}