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A Theoretical Study of CdTe Flat-film Thickness Impact on AM1.5G Solar Absorption
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Author: Minghao He, Qijia Cheng, Kezheng Li, Xuyao Duan, Hongyu Yu
Abstract: The impact of CdTe flat layer thickness on AM1.5G solar absorption is theoretically investigated in this paper. It is found that CdTe with a thickness down to 500 nm can achieve an ultimate efficiency (UE) of 31.9%, which is far greater than the counterpart of Si thin film (only 23.7% for a thickness of 10 µm). UE of CdTe tends to saturate with the thickness of more than 500 nm. For 550 nm thickness CdTe, 5% of thickness variation results in only about 0.1% UE change.
Keywords: CdTe; Solar Absorption
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