Computation of the porous silicon dielectric function in the supercell model and comparison with experiment

J. Tagüeña-Martínez, Y. G. Rubo, M. Beltrán, C. Wang, M. Cruz

Research output: Contribution to conferencePaper

Abstract

We present the results imaginary part of the dielectric function of porous silicon, which were obtained with the tight-binding 128-atom supercell model for different porosities. The supercells have been chosen to allow the interconnection of the Si skeleton. We have analyzed also the effects of pore morphology. We have found that, at a fixed porosity, the developing of the surface, resulting in the increase of saturating hydrogen atoms, leads to a noticeable blueshift of the absorption edge.
Original languageAmerican English
Pages231-236
Number of pages207
StatePublished - 1 Dec 2000
Externally publishedYes
EventMaterials Research Society Symposium - Proceedings -
Duration: 30 Jun 2003 → …

Conference

ConferenceMaterials Research Society Symposium - Proceedings
Period30/06/03 → …

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Porosity
Silicon
Skeleton
Hydrogen

Cite this

Tagüeña-Martínez, J., Rubo, Y. G., Beltrán, M., Wang, C., & Cruz, M. (2000). Computation of the porous silicon dielectric function in the supercell model and comparison with experiment. 231-236. Paper presented at Materials Research Society Symposium - Proceedings, .
Tagüeña-Martínez, J. ; Rubo, Y. G. ; Beltrán, M. ; Wang, C. ; Cruz, M. / Computation of the porous silicon dielectric function in the supercell model and comparison with experiment. Paper presented at Materials Research Society Symposium - Proceedings, .207 p.
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Tagüeña-Martínez, J, Rubo, YG, Beltrán, M, Wang, C & Cruz, M 2000, 'Computation of the porous silicon dielectric function in the supercell model and comparison with experiment', Paper presented at Materials Research Society Symposium - Proceedings, 30/06/03 pp. 231-236.

Computation of the porous silicon dielectric function in the supercell model and comparison with experiment. / Tagüeña-Martínez, J.; Rubo, Y. G.; Beltrán, M.; Wang, C.; Cruz, M.

2000. 231-236 Paper presented at Materials Research Society Symposium - Proceedings, .

Research output: Contribution to conferencePaper

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Tagüeña-Martínez J, Rubo YG, Beltrán M, Wang C, Cruz M. Computation of the porous silicon dielectric function in the supercell model and comparison with experiment. 2000. Paper presented at Materials Research Society Symposium - Proceedings, .