期刊
SUPERLATTICES AND MICROSTRUCTURES
卷 85, 期 -, 页码 331-338出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.spmi.2015.05.023
关键词
Thin films; Electronic materials; Sol-gel chemistry; CZTSSe
资金
- National Natural Science Foundation of China [11474231, 11264034, 11364036, 11464041]
- Fundamental Research Funds for the Universities of Gansu Province
Solution method is promising in fabricating Cu2ZnSn(S,Se)(4) (CZTSSe) thin-film solar cells, which could be economical and large-scale implementation, but highly toxic solvents have generally been involved. In this work, an ethylene glycol-based precursor solution method, which is simple and environmentally friendly, was newly designed for fabricating CZTSSe films. It was found that ethylene glycol was a suitable solvent for preparing CuZnSnS4 (CZTS) precursor film, which would be conducive to further applied in selenization processing at moderate temperatures (450 degrees C, 500 degrees C, 540 degrees C). The effects of the selenization temperature on the microstructure, phase composition and photoelectronic properties of CZTSSe films were also investigated. The results reveal that the quality of CZTSSe films could be effectively promoted by selenization temperature, and the highly-crystallized and void-free CZTSSe films were obtained at 540 degrees C, which may hold the promise for fabricating thin film solar cells. (C) 2015 Elsevier Ltd. All rights reserved.
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