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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/37903

Title: Influence of anionic substitution on the electrolyte electroreflectance study of band edge transitions in single crystal Cu2ZnSn(SxSe1−x)4 solid solutions
Authors: S. Levcenco
D. Dumcenco
Y.P. Wang
Y.S. Huang
C.H. Hob
E. Arushanov
V. Tezlevan
K.K. Tiong
Contributors: 國立臺灣海洋大學:電機工程學系
Keywords: Semiconductors
Optical spectroscopy
Optical properties
Date: 2012-01
Issue Date: 2016-05-23T06:47:30Z
Publisher: Optical Materials
Abstract: Abstract:Single crystals of Cu2ZnSn(SxSe1−x)4 (CZTSSe) solid solutions were grown by chemical vapor transport technique using iodine trichloride as a transport agent. As confirmed by X-ray investigations, the as-grown CZTSSe solid solutions are single phase and crystallized in kesterite structure. The lattice parameters of CZTSSe were determined and the S contents of the obtained crystals were estimated by Vegard’s law. The composition dependent band gaps of CZTSSe solid solutions were studied by electrolyte electroreflectance (EER) measurements at room temperature. From a detailed lineshape fit of the EER spectra, the band gaps of CZTSSe were determined accurately and were found to decrease almost linearly with the increase of Se content, which agreed well with the recent theoretical first-principle calculations by S. Chen, A. Walsh, J.H. Yang, X.G. Gong, L. Sun, P. X. Yang, J.H. Chu, S.H. Wei, Phys. Rev. B 83 (2011) 125201 (5pp).
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/37903
Appears in Collections:[電機工程學系] 期刊論文

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