Issue 39, 2023

Interface-suppressed high-quality symmetrical bifacial flexible CZTSe solar cells through a green electrodeposition process

Abstract

Bifacial flexible solar cells are considerably attractive owing to their high generation of energy per area and multidirectional light irradiation in advanced applications, such as building-integrated photovoltaics. Their technological ability to reduce manufacturing costs and time is highly essential. Although the solution-processed technique has implemented bifacial flexible Cu2ZnSn(S,Se)4 (CZTSSe) solar cells, no progress on the green electrodeposition process has occurred. Herein, we first propose symmetrical bifacial Cu2ZnSnSe4 (CZTSe) solar cells through a facile electrodeposition process, in which Mo foils are used as a common back electrode for both sides. Stacked electrodeposition accomplished at one time is involved to produce high-quality bifacial CZTSe absorber layers. This strategy can guarantee the consistency of bifacial flexible solar cells and immensely low costs and time. The resultant high efficiencies of 6.43% and 6.20% for the two sides have made a great breakthrough for electrodeposited flexible CZTSSe devices and offered a cost-effective strategy for green-processed material fabrications. Compared with the solution-processed technique, the determined interfacial-suppressed Voc limiting the efficiency provides a clear aspect for further improving the efficiency.

Graphical abstract: Interface-suppressed high-quality symmetrical bifacial flexible CZTSe solar cells through a green electrodeposition process

Supplementary files

Article information

Article type
Paper
Submitted
09 Jun 2023
Accepted
17 Aug 2023
First published
01 Sep 2023

J. Mater. Chem. A, 2023,11, 21293-21299

Interface-suppressed high-quality symmetrical bifacial flexible CZTSe solar cells through a green electrodeposition process

J. Liu, H. Cai, X. Wu, S. Liu, Y. Xue, X. Liu, K. Cheng and Z. Du, J. Mater. Chem. A, 2023, 11, 21293 DOI: 10.1039/D3TA03411A

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