Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/16868
Title: Spectral current-voltage analysis of kesterite solar cells
Authors: Buffiere, M.
BRAMMERTZ, Guy 
Oueslati, S.
El Anzeery, H.
Bekaert, Jonas
Ben Messaoud, Khaled
Köble, C.
Khelifi, S.
MEURIS, Marc 
POORTMANS, Jef 
Issue Date: 2014
Source: JOURNAL OF PHYSICS D-APPLIED PHYSICS, 47 (17)
Abstract: Current–voltage analysis using different optical band pass filters has been performed on Cu2ZnSnSe4 and Cu2ZnSn(S,Se)4 thin-film solar cells. When using red or orange light (i.e. wavelengths above 600 nm), a distortion appears in the I–V curve of the Cu2ZnSnSe4 solar cell, indicating an additional potential barrier to the current flow in the device for these conditions of illumination. This barrier is reduced when using a Cu2ZnSn(S,Se)4 absorber. Numerical simulations demonstrate that the barrier visible under red light could be explained by a positive conduction band offset at the front interface coupled with compensating defects in the buffer layer.
Notes: Buffiere, M (reprint author), Katholieke Univ Leuven, Dept Elect Engn ESAT, Kasteelpk Arenberg 10, B-3001 Heverlee, Belgium. buffiere@imec.be
Keywords: thin film solar cell; cross-over; red kink; CZTSe; kesterite
Document URI: http://hdl.handle.net/1942/16868
ISSN: 0022-3727
e-ISSN: 1361-6463
DOI: 10.1088/0022-3727/47/17/175101
ISI #: 000334504800003
Rights: © 2014 IOP Publishing Ltd.
Category: A1
Type: Journal Contribution
Validations: ecoom 2015
Appears in Collections:Research publications

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