4 January 2008 The key factors on silicon-based tandem thin film solar cells
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The key factor for high efficiency of tandem Si-based thin film solar cells is to optimize the whole configuration for improving its utilization of solar energy besides the active layers of device-quality level. Several aspects reached in our lab are discussed in this paper. A double structure of P+ window layer was proposed and studied. An interlayer between top-cell and bottom-cell in the tandem structure for forming a micro-cavity in top-cell was simulated by the software programmed by ourselves. Finally, the results of two types of tandem solar cells, namely, a-Si/a-Si and a-Si/μc-Si with the light trapping back-reflection structure are reported.
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Ying Zhao, Peizhuan Chen, Xin Jin, Xiaodan Zhang, Shaozhen Xiong, "The key factors on silicon-based tandem thin film solar cells", Proc. SPIE 6841, Solid State Lighting and Solar Energy Technologies, 68411B (4 January 2008); doi: 10.1117/12.785143; https://doi.org/10.1117/12.785143

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