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Title: | Effect of Cu content and temperature on the properties of Cu2ZnSnSe4 solar cells | Authors: | Sahayaraj, Sylvester BRAMMERTZ, Guy Buffiere, Marie MEURIS, Marc Vleugels, Jef POORTMANS, Jef |
Issue Date: | 2016 | Publisher: | EDP SCIENCES S A | Source: | EPJ Photovoltaics, 7 (Art N° UNSP 70304) | Abstract: | The complexity involved in obtaining pure Kesterite Cu2ZnSnSe4 (CZTSe) thin film primarily arises due to its narrow region of stability, leading to the presence of unavoidable binary selenides of the constituent metals. This study offers an insight on the formation of Cu selenides when the amount of Cu is varied in the precursor from Cu poor to Cu rich. The amount of Cu selenides was found to decrease when the composition of CZTSe absorber approached Cu rich conditions but functional devices were not obtained. Detailed characterizations also showed that the Cu and Sn binary phases were present, at the backside interface of CZTSe solar cells. However with an increase in the selenization temperature it was found that the amount of Cu selenides and other secondary phases could be drastically minimized or even eliminated leading to high efficiency devices. | Notes: | Sahayaraj, S (corresponding author), Katholieke Univ Leuven, Dept Elect Engn ESAT, Kasteelpk Arenberg 10, B-3001 Heverlee, Belgium.; Sahayaraj, S (corresponding author), Hasselt Univ, Inst Mat Res IMO, Wetenschapspk 1, B-3590 Diepenbeek, Belgium.; Sahayaraj, S (corresponding author), Katholieke Univ Leuven, Dept Mat Engn MTM, Kasteelpk Arenberg 44, B-3001 Heverlee, Belgium. sahaya@imec.be |
Keywords: | EFFICIENCY;ENTHALPIES;PHASE;FILMS | Document URI: | http://hdl.handle.net/1942/31573 | ISSN: | 2105-0716 | e-ISSN: | 2105-0716 | DOI: | 10.1051/cpjp/2016004 | ISI #: | WOS:000386523000001 | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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