Solution-based thin-film semiconductors offer a promising path for the mass production of low-cost solar cells prepared at low temperatures. Thin-film Cu-based chalcogenides such as Cu(In,Ga)(S,Se)2 (CIGSSe) and Cu2ZnSn(S,Se)4 (CZTSSe) hold great promise and have been regarded as viable candidates because of the abundance of their constituent elements and environmentally nontoxic nature. This Review summarizes the recent progress in solution-processed Cu chalcogenides (CuInSe2, Cu(In,Ga)(S,Se)2, Cu2ZnSnS4, Cu2ZnSn(S,Se)4) for thin-film solar cells, with emphasis on the precursor solution deposited by spray pyrolysis and spin coating. The general aspects, current status, and recent research highlights are introduced and analyzed in detail. Finally, the challenges and future prospects of these solar cells are also discussed.
Bibliographical noteFunding Information:
This Review is written in response to an invitation to contribute to a special edition featuring the research performed at National Research Foundation CREATE Campus, Singapore. We acknowledge financial support from National Research Foundation (NRF), Singapore, through the Singapore-Berkeley Research Initiative for Sustainable Energy (SinBeRISE) and Nanomaterials for Energy and Water Management (SHARE NEW) CREATE programme, MOE Tier 2 and NTU CoE Industrial grant.
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
- copper chalcogenide
- solar cells
- thin films