Synthesis and characterization of Cu_2ZnSnS_4 from Cu_2SnS_3 and ZnS compounds

The Cu2 Zn Sn S4（CZTS） powders are successfully synthesized by using Zn S and Cu2 Sn S3 as raw materials directly without any intermediate phase at 450 °C for 3 h in Ar atmosphere.The crystalline structure,morphology and optical properties of the CZTS powders are characterized by X-ray diffraction（X...

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Bibliographic Details
Published in:光电子快报：英文版 2015 (4), p.277-280
Main Author: 李士娜 马瑞新 李东冉 杨帆 张晓勇 李祥 朱鸿民
Format: Article
Language:English
Subjects:
UV-Vis
X-射线衍射
ZnS
化合物
合成
场发射扫描电子显微镜
紫外可见分光光度计
表征
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Summary:The Cu2 Zn Sn S4（CZTS） powders are successfully synthesized by using Zn S and Cu2 Sn S3 as raw materials directly without any intermediate phase at 450 °C for 3 h in Ar atmosphere.The crystalline structure,morphology and optical properties of the CZTS powders are characterized by X-ray diffraction（XRD）,Raman spectrum,field emission scanning electron microscopy（FESEM） and ultraviolet-visible（UV-vis） spectrophotometer,respectively.The results show that the band gap of the obtained CZTS is 1.53 e V.The CZTS film is fabricated by spin coating a mixture of CZTS powders and novolac resin with a weight percentage of 30%.The photoelectrical properties of such CZTS films are measured,and the results show an incident light density of 100 m W·cm-2 with the bias voltage of 0.40 V,and the photocurrent density can approach 9.80×10-5 A·cm2 within 50 s,giving an on/off switching ratio of 1.64.
ISSN:1673-1905
1993-5013