Copper tin sulfide (CTS) absorber thin films obtained by co-evaporation: Influence of the ratio Cu/Sn

Journal of Alloys and Compounds（2015）

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摘要

•Copper tin sulfide (CTS) thin films were grown by co-evaporation at different Cu/Sn atomic ratios.•Smooth Cu2SnS3 layers with large grains are obtained at Cu/Sn⩾1.5 and T⩾350°C.•At 450°C, the cubic Cu2SnS3 phase changes to tetragonal phase.•Cu2SnS3 presents suitable optical and electrical properties for use as photovoltaic absorbers.

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关键词

Semiconductors,Thin films,Vapor deposition,Crystal structure,Optical properties,X-ray diffraction

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