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Analyse des mécanismes de conversion photovoltaïque dans les cellules à base de Cu(In,Ga)(S,Se)2 électrodéposé (Projet CISEL)

Abstract : Thin film electrodeposited Cu(In,Ga)(S,Se) 2 solar cells with efficiencies of 11.4% have been demonstrated by the CISEL project, a record for this technology. We analyse the performance of these cells, with emphasis on identifying dominant photoconversion and loss mechanisms. The current voltage characteristics of samples with a range of structures are analysed over a range of temperatures to provide understanding of mechanisms. Further identical samples with varying efficiencies are analysed in order to pinpoint loss mechanisms and means of improving the cells. We find that photocurrent losses dominate, whereas dark current parameters are less responsible for efficiency variations observed. This is confirmed by studies of the crystallinity of the devices.
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https://hal-supelec.archives-ouvertes.fr/hal-00321080
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Submitted on : Monday, September 28, 2020 - 9:47:33 AM
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  • HAL Id : hal-00321080, version 1

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J.P. Connolly, M. Benosman, N. Bodereau, P. Colin, J.-F. Guillemoles, et al.. Analyse des mécanismes de conversion photovoltaïque dans les cellules à base de Cu(In,Ga)(S,Se)2 électrodéposé (Projet CISEL). Séminaire RDT photovoltaïque CNRS-ADEME, Matériaux et procédés pour la conversion photovoltaïque de l'énergie solaire, Nov 2004, Sophia-Antipolis, France. ⟨hal-00321080⟩

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