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Title: | Development of Co-evaporated In2S3 Buffer Layer for Cu2ZnSnSe4 Thin Film Solar Cells | Authors: | Buffiere, Marie Barreau, Nicolas BRAMMERTZ, Guy Sahayaraj, Sylvester MEURIS, Marc POORTMANS, Jef |
Issue Date: | 2015 | Publisher: | IEEE | Source: | Photovoltaic Specialist Conference (PVSC), 2015 IEEE 42nd | Series/Report: | IEEE Photovoltaic Specialists Conference | Abstract: | In this work, we focus on the replacement of the commonly used but toxic Cd-based buffer layer by In2S3 thin films deposited by co-evaporation for application in Cu2ZnSnSe4 (CZTSe) solar cells. The impact of the deposition conditions of the buffer layer on the electrical behavior of CZTSe/In2S3 devices is first investigated. The best solar cell efficiencies were obtained for relatively thick In2S3 buffer layers (similar to 100 nm) deposited at low temperature (<100 degrees C). It is also observed that low [Cu]/([Zn]+[Sn]) ratio (CZT similar to 0.75) in the kesterite absorber leads to high efficiency for In-based buffered CZTSe solar cells, while the effect of the CZT ratio on CZTSe/CdS solar cell performances is not so clear. A conversion efficiency of 5.7 % on CZTSe/In2S3 thin film solar cell is achieved. | Notes: | [Buffiere, Marie; Poortmans, Jef] Imec Partner Solliance, Kapeldreef 75, B-3001 Louvain, Belgium. [Buffiere, Marie; Poortmans, Jef] Katholieke Univ Leuven, Dept Elect Engn ESAT, B-3001 Heverlee, Belgium. [Barreau, Nicolas] Univ Nantes, CNRS, Inst Matriaux Jean Rouxel, F-44322 Nantes 3, France. [Brammertz, Guy; Meuris, Marc] Imec Div IMOMEC Partner Solliance, B-3590 Diepenbeek, Belgium. [Brammertz, Guy; Meuris, Marc] Hasselt Univ, Inst Mat Res IMO, B-3590 Diepenbeek, Belgium. [Sahayaraj, Sylvester] Katholieke Univ Leuven, Dept Met & Mat Engn MTM, B-3001 Heverlee, Belgium. | Keywords: | kesterite; Cd-free buffer layer; physical process;kesterite; cd-free buffer layer; physical process | Document URI: | http://hdl.handle.net/1942/21725 | ISBN: | 978-1-4799-7944-8 | DOI: | 10.1109/PVSC.2015.7355906 | ISI #: | 000369992901089 | Rights: | © 2015 IEEE | Category: | C1 | Type: | Proceedings Paper | Validations: | ecoom 2017 |
Appears in Collections: | Research publications |
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