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Igalson, M., Urbaniak, A., Zabierowski, P., Maksoud, A. H., Buffiere, M., Barreau, N. & Spiering, S. (2013) Red-blue effect in Cu(In,Ga)Se-2-based devices revisited. Thin Solid Films, 535 302–306.
Added by: Laurent Cournède (2016-03-10 21:23:30) |
| Type de référence: Article DOI: 10.1016/j.tsf.2012.11.040 Numéro d'identification (ISBN etc.): 0040-6090 Clé BibTeX: Igalson2013 Voir tous les détails bibliographiques  |
Catégories: CESES, INTERNATIONAL Mots-clés: Alternative buffers, Capacitance, cigs, Fill factor, ga)se-2 solar-cells, performance, Solar cells, zno/cds/cu(in Créateurs: Barreau, Buffiere, Igalson, Maksoud, Spiering, Urbaniak, Zabierowski Collection: Thin Solid Films |
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The controversial issue of a source for the fill factor losses in Cu(In,Ga)Se-2-based solar cells observed under red light is discussed. Experimental evidence is presented that removal of the fill factor loss by blue light is accompanied by a decrease in capacitance. Similar kinetics for both effects are observed. This effect is demonstrated not only on CdS-buffered devices but also on Zn(O,S)- and In2S3-buffered cells. The explanation, supported by simulations, is based on a model of a reduction of the p+ layer by holes photogenerated in the buffer. This effect might be differentiated from the effect of a photosensitive secondary barrier in the buffer-window part of the junction by a sign of the capacitance change under blue light. (C) 2012 Elsevier B.V. All rights reserved.
Added by: Laurent Cournède |