Composition dependence of structure and optical properties of Cu 2ZnSn(S,Se)4 solid solutions: An experimental study

Jun He; Lin Sun; Shiyou Chen; Ye Chen; Pingxiong Yang; Junhao Chu

doi:10.1016/j.jallcom.2011.08.099

Composition dependence of structure and optical properties of Cu ₂ZnSn(S,Se)₄ solid solutions: An experimental study

Jun He, Lin Sun, Shiyou Chen, Ye Chen, Pingxiong Yang, Junhao Chu

School of Physics and Electronic Science

East China Normal University

Research output: Contribution to journal › Article › peer-review

190 Scopus citations

Abstract

The evolution of structure and optical properties of Cu₂ZnSn (S_xSe_1-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 A₁ 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 ≈ 0.08 eV) is deduced.

Original language	English
Pages (from-to)	129-132
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	511
Issue number	1
DOIs	https://doi.org/10.1016/j.jallcom.2011.08.099
State	Published - 15 Jan 2012

Keywords

CuZnSn(S,Se)
Optical absorption
Raman spectroscopy
Solid solutions
X-ray diffraction (XRD)

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10.1016/j.jallcom.2011.08.099

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title = "Composition dependence of structure and optical properties of Cu 2ZnSn(S,Se)4 solid solutions: An experimental study",

abstract = "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 A1 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 ≈ 0.08 eV) is deduced.",

keywords = "CuZnSn(S,Se), Optical absorption, Raman spectroscopy, Solid solutions, X-ray diffraction (XRD)",

author = "Jun He and Lin Sun and Shiyou Chen and Ye Chen and Pingxiong Yang and Junhao Chu",

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doi = "10.1016/j.jallcom.2011.08.099",

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T1 - Composition dependence of structure and optical properties of Cu 2ZnSn(S,Se)4 solid solutions

T2 - An experimental study

AU - He, Jun

AU - Sun, Lin

AU - Chen, Shiyou

AU - Chen, Ye

AU - Yang, Pingxiong

AU - Chu, Junhao

PY - 2012/1/15

Y1 - 2012/1/15

N2 - 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 A1 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 ≈ 0.08 eV) is deduced.

AB - 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 A1 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 ≈ 0.08 eV) is deduced.

KW - CuZnSn(S,Se)

KW - Optical absorption

KW - Raman spectroscopy

KW - Solid solutions

KW - X-ray diffraction (XRD)

UR - https://www.scopus.com/pages/publications/80054714242

U2 - 10.1016/j.jallcom.2011.08.099

DO - 10.1016/j.jallcom.2011.08.099

M3 - 文章

AN - SCOPUS:80054714242

SN - 0925-8388

VL - 511

SP - 129

EP - 132

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1

ER -

Composition dependence of structure and optical properties of Cu ₂ZnSn(S,Se)₄ solid solutions: An experimental study

Abstract

Keywords

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