Cu sub(2)ZnSn(S sub(1) sub(-) sub(x)Se sub( x)) sub(4) thin films for photovoltaic applications: Influence of the precursor stacking order on the selenization process

Cu sub(2)ZnSn(S sub(1) sub(-) sub(x)Se sub( x)) sub(4) thin films have been synthesized from vacuum deposited precursors using an annealing process under a selenium rich atmosphere. A study of intermediate reactions during the process shows that the formation of minor phases strongly depends on the...

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Published inJournal of alloys and compounds Vol. 588; pp. 310 - 315
Main Authors Altamura, Giovanni, Grenet, Louis, Bougerol, Catherine, Robin, Eric, Kohen, David, Fournier, Helene, Brioude, Arnaud, Perraud, Simon, Mariette, Henri
Format Journal Article
LanguageEnglish
Published 01.03.2014
Subjects
Alloys
Deposition
Phases
Photovoltaic cells
Precursors
Solar cells
Stacking
Thin films
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Summary:Cu sub(2)ZnSn(S sub(1) sub(-) sub(x)Se sub( x)) sub(4) thin films have been synthesized from vacuum deposited precursors using an annealing process under a selenium rich atmosphere. A study of intermediate reactions during the process shows that the formation of minor phases strongly depends on the precursor stacking order. In particular a Cu layer inhibits the diffusion of chalcogens below temperatures of at least 350 degree C. However it is possible to obtain a homogeneous thin film at the end of the selenization process with material properties and photovoltaic performance that are almost independent of the precursor stacking order.
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ISSN:0925-8388
DOI:10.1016/j.jallcom.2013.11.068