Exciton spectra of CuInSe2 crystals
The excitonic reflectivity spectra and the wave-length derivative reflection spectra have been investigated for CuInSe2 crystals. The n =1, n =2 and n = 3 states of A, B and C exciton series are revealed and the contours of exciton lines (n=1) are calculated. The exciton binding energies and ex...
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D.Ghitu Institute of Electronic Engineering and Nanotechnologies
2005
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oai:doaj.org-article:beb8dd27db9e470787eece3e79c2a0fa2021-11-21T12:11:18ZExciton spectra of CuInSe2 crystals2537-63651810-648Xhttps://doaj.org/article/beb8dd27db9e470787eece3e79c2a0fa2005-12-01T00:00:00Zhttps://mjps.nanotech.md/archive/2005/article/3354https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365The excitonic reflectivity spectra and the wave-length derivative reflection spectra have been investigated for CuInSe2 crystals. The n =1, n =2 and n = 3 states of A, B and C exciton series are revealed and the contours of exciton lines (n=1) are calculated. The exciton binding energies and exact values of the band gaps of all three intervals Γ7 (V1) – Γ6 (C1), Γ6 (V2) – Γ6 (C1), Γ7 (V3) – Γ6 (C1) have been also calculated. Data of the splitting due to crystal-field and spin-orbit interaction are determined. The parameters of excitons and energy bands for the region of interband interval minimum have been determined as well. The band model in the Γ, N and T points of the Brillouin zone is proposed. Nemerenco, LucreţiaD.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 4, Iss 4, Pp 438-442 (2005) |
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Physics QC1-999 Electronics TK7800-8360 |
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Physics QC1-999 Electronics TK7800-8360 Nemerenco, Lucreţia Exciton spectra of CuInSe2 crystals |
description |
The excitonic reflectivity spectra and the wave-length derivative reflection spectra have
been investigated for CuInSe2 crystals. The n =1, n =2 and n = 3 states of A, B and C exciton
series are revealed and the contours of exciton lines (n=1) are calculated. The exciton binding
energies and exact values of the band gaps of all three intervals Γ7 (V1) – Γ6 (C1), Γ6 (V2) – Γ6
(C1), Γ7 (V3) – Γ6 (C1) have been also calculated. Data of the splitting due to crystal-field and
spin-orbit interaction are determined. The parameters of excitons and energy bands for the
region of interband interval minimum have been determined as well. The band model in the Γ,
N and T points of the Brillouin zone is proposed.
|
format |
article |
author |
Nemerenco, Lucreţia |
author_facet |
Nemerenco, Lucreţia |
author_sort |
Nemerenco, Lucreţia |
title |
Exciton spectra of CuInSe2 crystals |
title_short |
Exciton spectra of CuInSe2 crystals |
title_full |
Exciton spectra of CuInSe2 crystals |
title_fullStr |
Exciton spectra of CuInSe2 crystals |
title_full_unstemmed |
Exciton spectra of CuInSe2 crystals |
title_sort |
exciton spectra of cuinse2 crystals |
publisher |
D.Ghitu Institute of Electronic Engineering and Nanotechnologies |
publishDate |
2005 |
url |
https://doaj.org/article/beb8dd27db9e470787eece3e79c2a0fa |
work_keys_str_mv |
AT nemerencolucretia excitonspectraofcuinse2crystals |
_version_ |
1718419147672518656 |