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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/26260

Title: Doping of Cu2ZnSnSe4 solar cells with Na+ or K+ alkali ions
Authors: Sahayaraj, Sylvester
Brammertz, Guy
Vermang, Bart
Mule, Aniket
Schnabel, Thomas
Meuris, Marc
Vleugels, Jef
Poortmans, Jef
Issue Date: 2018
Citation: JOURNAL OF MATERIALS CHEMISTRY A, 6(6), p. 2653-2663
Abstract: In this work, the addition of molar concentrations of Na+ and/or K+ in the form of fluorides during the processing of Cu2ZnSnSe4 absorber layers was investigated. The beneficial effect of alkali salts on the performance of CZTSe solar cells has been demonstrated through physical and electrical characterization. A maximum power conversion efficiency of 8.3% has been obtained through controlled addition of Na+ and K+ in the CZTSe absorber as opposed to 6.7% from uncontrolled addition of both. The open circuit voltage in both cases was very much the same but the devices with controlled addition showed lower p-type doping, a low density of charged defects and less band tailing compared to the rest.
Notes: Sahayaraj, S (reprint author), AIMEC Div IMOMEC, Wetenschapspk 1, B-3590 Diepenbeek, Belgium. sahaya@imec.be
URI: http://hdl.handle.net/1942/26260
DOI: 10.1039/c7ta05415g
ISI #: 000424466300026
ISSN: 2050-7488
Category: A1
Type: Journal Contribution
Appears in Collections: Research publications

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