This paper reports the conversion of CBD CuxS films into CuInS2 films. XRD
spectra of the as-prepared CuxS films show lack of crystallinity. When pure
indium is evaporated over these films and the samples are subsequently ann
ealed, the film improves in crystallinity and shows major peaks of CuInS2.
Absorption spectra and XPS depth profile of the samples support this result
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