Electrochemical studies for the deposition of CuGaSe2 using ions citrate as a complexing agent
Keywords:
semiconductor films, solar cells, electrodepositionAbstract
The Cu-Ga-Se electrochemical system was studied in 0.5M electrolytic medium of Na2SO4 at pH 2.5 and the influence of citrate ions on the deposition of CuGaSe 2 semiconductor films was studied. The studies by cyclic voltammetry show us a Cu-Ga-Se system complex, with a large number of processes involved in the formation of the film. Based on the voltammetric results, we attempted to synthesize CuGaSe 2 films, using the potentiostatic electrolysis technique, at different deposition potentials and using as electrolytic medium a solution containing: 0.01M SeO 2, 0.01M CuSO4, 0.02M Ga3 + and 0.05M citric acid dissolved in 0.5M Na2SO4.
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