Optical constants of Cu ZnSnS bulk crystals

The dielectric functions of Cu2ZnSnS4 bulk crystals grown by the Bridgman method were measured over the energy range 0.8 to 4.7 eV at room temperature using variable angle spectroscopic ellipsometry. The spectral dependence of complex refractive index, the absorption coefficient, and the normal-i...

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Autores principales:	Levcenco, Sergiu, Gurieva, Galina, Guc, Maxim, Nateprov, Alexandr
Formato:	article
Lenguaje:	EN
Publicado:	D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2009
Materias:	Physics QC1-999 Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/1e35e053f02044ffb8bff2e4c06d39da
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spelling	oai:doaj.org-article:1e35e053f02044ffb8bff2e4c06d39da2021-11-21T12:05:15ZOptical constants of Cu ZnSnS bulk crystals 2537-63651810-648Xhttps://doaj.org/article/1e35e053f02044ffb8bff2e4c06d39da2009-05-01T00:00:00Zhttps://mjps.nanotech.md/archive/2009/article/4047https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365The dielectric functions of Cu2ZnSnS4 bulk crystals grown by the Bridgman method were measured over the energy range 0.8 to 4.7 eV at room temperature using variable angle spectroscopic ellipsometry. The spectral dependence of complex refractive index, the absorption coefficient, and the normal-incidence reflectivity were also derived. The structure observed in the dielectric functions attributed to interband transitions E0, E1A E1B has been modelled using the Adachi’s model. The model parameters (strength, threshold energy, and broadening) have been determined using the simulated annealing (SA) algorithm. The results are in a good agreement with the experimental data over the entire range of photon energies. Levcenco, SergiuGurieva, GalinaGuc, MaximNateprov, AlexandrD.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 8, Iss 2, Pp 173-177 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronics TK7800-8360
spellingShingle	Physics QC1-999 Electronics TK7800-8360 Levcenco, Sergiu Gurieva, Galina Guc, Maxim Nateprov, Alexandr Optical constants of Cu ZnSnS bulk crystals
description	The dielectric functions of Cu2ZnSnS4 bulk crystals grown by the Bridgman method were measured over the energy range 0.8 to 4.7 eV at room temperature using variable angle spectroscopic ellipsometry. The spectral dependence of complex refractive index, the absorption coefficient, and the normal-incidence reflectivity were also derived. The structure observed in the dielectric functions attributed to interband transitions E0, E1A E1B has been modelled using the Adachi’s model. The model parameters (strength, threshold energy, and broadening) have been determined using the simulated annealing (SA) algorithm. The results are in a good agreement with the experimental data over the entire range of photon energies.
format	article
author	Levcenco, Sergiu Gurieva, Galina Guc, Maxim Nateprov, Alexandr
author_facet	Levcenco, Sergiu Gurieva, Galina Guc, Maxim Nateprov, Alexandr
author_sort	Levcenco, Sergiu
title	Optical constants of Cu ZnSnS bulk crystals
title_short	Optical constants of Cu ZnSnS bulk crystals
title_full	Optical constants of Cu ZnSnS bulk crystals
title_fullStr	Optical constants of Cu ZnSnS bulk crystals
title_full_unstemmed	Optical constants of Cu ZnSnS bulk crystals
title_sort	optical constants of cu znsns bulk crystals
publisher	D.Ghitu Institute of Electronic Engineering and Nanotechnologies
publishDate	2009
url	https://doaj.org/article/1e35e053f02044ffb8bff2e4c06d39da
work_keys_str_mv	AT levcencosergiu opticalconstantsofcuznsnsbulkcrystals AT gurievagalina opticalconstantsofcuznsnsbulkcrystals AT gucmaxim opticalconstantsofcuznsnsbulkcrystals AT nateprovalexandr opticalconstantsofcuznsnsbulkcrystals
_version_	1718419231082545152

Optical constants of Cu ZnSnS bulk crystals

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