The effect of pH adjustments on the structural and optical properties of CIAS thin films

CIAS, ‘Cu (In Al) Se2’ thin films are prepared on the glass substrates using
economical chemical bath deposition ‘CBD’ technique. The effect of pH adjustments
before or after preheating the reaction mixture has been discussed in this paper in a
detail. Due to pH adjustment the change in the preferential orientation on the structural
properties and the band gap variation with respect to thickness on the optical properties,
has also been discussed.

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