Composition dependence of structure and optical properties of Cu2ZnSn(S,Se)4 solid solutions: An experimental study

被引：171

作者：

He, Jun ^{[1
]}

Sun, Lin ^{[1
]}

Chen, Shiyou ^{[1
]}

Chen, Ye ^{[1
]}

Yang, Pingxiong ^{[1
]}

Chu, Junhao ^{[1
]}

机构：

[1] E China Normal Univ, Key Lab Polar Mat & Devices, Minist Educ, Shanghai 200241, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2012年 / 511卷 / 01期

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

Cu2ZnSn(S; Se)(4); X-ray diffraction (XRD); Raman spectroscopy; Optical absorption; Solid solutions; CU2ZNSNS4; THIN-FILMS; FORCE-CONSTANT; STANNITE; ZN; VI;

D O I：

10.1016/j.jallcom.2011.08.099

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The evolution of structure and optical properties of Cu2ZnSn (SxSe1-x)(4) (CZTSSe) solid solutions in a wide composition range (0 <= x <= 1) has not been fully elucidated. We have performed comprehensive characterization on the CZTSSe powders with different S/Se ratios, which were synthesized by the solid state reaction method. X-ray diffraction patterns demonstrate that the lattice parameters a and c of CZTSSe decrease lineally when S replace Se gradually, which obeys the Vegard's rule. The A(1) Raman modes of CZTSSe show a typical two-mode behavior. The absorption spectra reveal that the band gap of CZTSSe can be tuned monotonously between 0.96 and 1.5 eV with almost linearity, and a small band gap bowing constant (b approximate to 0.08 eV) is deduced. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：129 / 132

页数：4

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