期刊
MATERIALS RESEARCH EXPRESS
卷 6, 期 7, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2053-1591/ab143b
关键词
solar energy materials; In2S3; thin films; SPV; band gap energy; diffusion length
资金
- University of Malaya [RF021B-2018]
In recent years, In2S3 thin films were widely used as buffer/window layer in thin film solar cells as an alternative to toxic CdS. In the present work, we demonstrate the potential of surface photovoltage spectroscopy for estimation of minority carrier diffusion length, band gap energy and refractive index of thermally evaporated In2S3 thin films. The estimated minority carrier diffusion length of In2S3 thin films from SPV measurements were 0.112 mu mand 0.052 mu mfor films annealed at 250 and 300 degrees C respectively.
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