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Shogo Ishizuka, Akimasa Yamada, Paul Fons and Shigeru Niki Texture and morphology variations in (In,Ga)2Se3 and Cu(In,Ga)Se2 thin films grown with various Se source conditions Progress in Photovoltaics: Research and Applications 21

Article first published online: 10 NOV 2011 | DOI: 10.1002/pip.1227

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(In,Ga)2Se3 precursor films showed systematic variations in texture and the Na distribution profile with varying Se source condition. Both the properties of Cu(In,Ga)Se2 films and solar cells also showed systematic variations, and the open-circuit voltage and fill factor were found to be especially sensitive to the Se flux. RF-plasma cracked radical Se-grown (In,Ga)2Se3 precursor films featured granular morphologies and small grain sizes, although the final Cu(In,Ga)Se2 films displayed highly dense surfaces and large grain sizes.

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