Water-Assisted Lift-Off Process for Flexible CdTe Solar Cells

Sandip Singh Bista; Deng-Bing Li; Suman Rijal; Sabin Neupane; Rasha A. Awni; Chun-Sheng Jiang; Chuanxiao Xiao; Kamala Khanal Subedi; Zhaoning Song; Adam B. Phillips; Xixing Wen; Randall J. Ellingson; Michael J. Heben; Yanfa Yan

doi:10.1021/acsaem.2c03287

journal article·2023-01-23Open access

Water-Assisted Lift-Off Process for Flexible CdTe Solar Cells

Sandip Singh Bista, Deng-Bing Li, Suman Rijal, Sabin Neupane, Rasha A. Awni, Chun-Sheng Jiang, Chuanxiao Xiao, Kamala Khanal Subedi, Zhaoning Song, Adam B. Phillips, Xixing Wen, Randall J. Ellingson, Michael J. Heben, Yanfa Yan

ACS Applied Energy Materials· Volume 6· Issue 2

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Source abstract

Abstract

In recent years, various lift-off methods have been developed to fabricate lightweight and flexible cadmium telluride (CdTe)-based solar cells. In this work, we report flexible cadmium sulfide (CdS)/CdTe solar cells using a water-assisted lift-off approach. We demonstrate that an additional cadmium chloride treatment for the CdS film is critical to improve the grain size of CdS and the post-deposited CdTe film and the electron conductivity of the CdS film. As a result, the quality of the CdS/CdTe front junction is significantly improved with reduced nonradiative recombination. Finally, our lightweight and flexible polycrystalline CdTe solar cells demonstrate a champion power conversion efficiency of 12.6%.

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Research context

OpenAlex topics: Chalcogenide Semiconductor Thin Films · Quantum Dots Synthesis And Properties · solar cell performance optimization

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization (PVIC), University of Toledo, Toledo, Ohio 43606, Unites States

Materials Science Center, National Renewable Energy Laboratory, Golden, Colorado 80401, Unites States

Center for Materials, Devices and Integrated Systems, Rensselaer Polytechnic Institute, Troy, New York 12180, Unites States

Funding

Air Force Research Laboratory · Solar Energy Technologies Program

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