期刊
THIN SOLID FILMS
卷 582, 期 -, 页码 124-127出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2014.10.070
关键词
Cadmium sulfide; Chemical bath deposition; Solar cells
类别
资金
- IPN [SIP 20140460, SIP 20140501, SIP20140549]
- CONACyT FOMIX [2012-2, 189282]
CdS polycrystalline thin films have been used as a window layer in CdTe, Cu(In, Ga)Se-2 and Cu2ZnSnS4 solar cells; the specific optical and electrical properties of the CdS-partner play an important role in the photovoltaic device performance, so that one of the problems to be solved is to reduce the pin-hole density and intergrain cavities on the CdS surface. SnO2: F/soda-limeglass substrates (FTO) were treated with HCl, Ar and O-2. CdS films were deposited on FTO substrates by using the chemical bath deposition technique and then CdS thin films were thermally annealed on CdCl2, Ar atmospheres and muffle at atmospheric ambient. Optical and morphological measurements revealed that the HCl treatment improves the CdS growth because the defect levels were reduced while the grain size is increased. The processed CdS-thin films were applied on CdTe solar cells and the photovoltaic efficiency was about 12% when the CdS thin films were thermally annealed in muffle at atmospheric ambient. (C) 2014 Elsevier B.V. All rights reserved.
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