NUMERICAL INVESTIGATIONS ON THE WORKING MECHANISMS OF SOLAR CELLS WITH A CdTe-BASED COMPOSITE-ABSORBER LAYER

Institute of Solar Energy Materials and Devices, College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China; X. YIN; L. WU; Institute of Solar Energy Materials and Devices, College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China

doi:10.15251/cl.2020.179.439

journal article·2020-09Open access

NUMERICAL INVESTIGATIONS ON THE WORKING MECHANISMS OF SOLAR CELLS WITH A CdTe-BASED COMPOSITE-ABSORBER LAYER

Institute of Solar Energy Materials and Devices, College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China, X. YIN, L. WU, Institute of Solar Energy Materials and Devices, College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China

Chalcogenide Letters· Volume 17· Issue 9

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Abstract

We investigated the working mechanisms of CdTe solar cells in which a second absorber-layer (defined as A2) with a lower bandgap was added through SCAPS simulation. The results show various positions and bandgap values of A2 are applicable at particular parameters, and the details are analyzed. We explored the essence of the improved cell performances via adding A2 for different occasions and provided some principles and models. Some new cognition for real cells was also presented. Additionally, we studied how the parameters of the wider-gap first absorber-layer influence the cell performances and its function as 439a back highly-resistant layer.

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OpenAlex topics: Chalcogenide Semiconductor Thin Films · solar cell performance optimization · Silicon and Solar Cell Technologies

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