2009
Miranda, A.; Vázquez, R.; Díaz-Méndez, A.; Cruz-Irisson, M.
Optical matrix elements in tight-binding approach of hydrogenated Si nanowires Artículo de revista
En: Microelectronics Journal, vol. 40, no 3, pp. 456-458, 2009, ISSN: 1879-2391, (Workshop of Recent Advances on Low Dimensional Structures and Devices (WRA-LDSD)).
Resumen | Enlaces | BibTeX | Etiquetas: Dielectric function, Silicon nanowires, Tight-binding approach
@article{MIRANDA2009456,
title = {Optical matrix elements in tight-binding approach of hydrogenated Si nanowires},
author = {A. Miranda and R. V\'{a}zquez and A. D\'{i}az-M\'{e}ndez and M. Cruz-Irisson},
url = {https://www.sciencedirect.com/science/article/pii/S0026269208002565},
doi = {https://doi.org/10.1016/j.mejo.2008.06.018},
issn = {1879-2391},
year = {2009},
date = {2009-01-01},
urldate = {2009-01-01},
journal = {Microelectronics Journal},
volume = {40},
number = {3},
pages = {456-458},
abstract = {The dependence of the imaginary part of the dielectric function on the quantum confinement within two different schemes: intra-atomic and interatomic optical matrix elements are applied and compared. The optical spectra of Si nanowires are studied by means of a semi-empirical sp3s* tight-binding supercell model. The surface dangling bonds are passivated by hydrogen atoms. The results show that although the intra-atomic matrix elements are small in magnitude, the interference between these terms and the interatomic matrix elements contributes with nearly 25% of the total absorption. Thus, a quantitative treatment of nanostructures may not be possible without the inclusion of intra-atomic matrix elements.},
note = {Workshop of Recent Advances on Low Dimensional Structures and Devices (WRA-LDSD)},
keywords = {Dielectric function, Silicon nanowires, Tight-binding approach},
pubstate = {published},
tppubtype = {article}
}
The dependence of the imaginary part of the dielectric function on the quantum confinement within two different schemes: intra-atomic and interatomic optical matrix elements are applied and compared. The optical spectra of Si nanowires are studied by means of a semi-empirical sp3s* tight-binding supercell model. The surface dangling bonds are passivated by hydrogen atoms. The results show that although the intra-atomic matrix elements are small in magnitude, the interference between these terms and the interatomic matrix elements contributes with nearly 25% of the total absorption. Thus, a quantitative treatment of nanostructures may not be possible without the inclusion of intra-atomic matrix elements.
