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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Autor principal: Nemerenco, Lucreţia
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Publicado: D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2005
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spelling 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)
institution DOAJ
collection DOAJ
language EN
topic Physics
QC1-999
Electronics
TK7800-8360
spellingShingle 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
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