单相kesterite Cu2ZnSnS4纳米晶的简易一锅合成

2016 13th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE) Pub Date : 2016-09-01 DOI:10.1109/ICEEE.2016.7751250

Rasu Chettiar Aruna Devi, M. Latha, M. Rohini, P. Reyes-Figueroa, S. Velumani, Adolfo Tavira Fuentes, M. G. Arellano, F. Aponte, J. Salazar

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引用次数: 0

摘要

采用简易一锅热分解法制备了Cu2ZnSnS4 (CZTS)纳米晶体。本研究考察了反应时间(30 min、1、2、4和8 h)对CZTS纳米晶结构、形态和组成性能的影响。结构分析表明，合成时间小于2 h的CZTS纳米晶中存在Cu2-xS相，随着反应时间的延长，Zn2+和Sn4+阳离子扩散到Cu2-xS晶格中，形成单相CZTS。形貌分析表明，随着反应时间的延长，CZTS纳米晶的形状不规则，尺寸分布也不均匀。随着反应时间的延长，CZTS纳米晶的组成逐渐接近目标值(Cu: Zn: Sn: S = 2:1:1:4)。

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Facile one pot synthesis of single phase kesterite Cu2ZnSnS4 nanocrystals

Cu2ZnSnS4 (CZTS) nanocrystals were synthesized by employing facile one pot thermal decomposition method. In this study, the influence of reaction time (30 min, 1,2,4 and 8 h) on the structural, morphological and compositional properties of CZTS nanocrystal was investigated. Structural analysis showed presence of Cu2-xS phase in the CZTS nanocrystals synthesized for lesser than 2 h. As the reaction time proceeds, Zn2+ and Sn4+ cations diffuse into Cu2-xS lattice and lead to the formation of single phase CZTS. Morphological analysis showed CZTS nanocrystals with irregular shape as well as inhomogeneous size distribution with respect to various reaction time. The composition of CZTS nanocrystals was found to be approaching the targeted value (Cu: Zn: Sn: S = 2:1:1:4) as the reaction time increases.

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2016 13th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)

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