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The rapid development and progress of science and technology in the field of energy and material has been illuminated the significance of conducting polymer. During the last decade researcher have been struggling to rise up the power conversion efficiency of solar cell by developing new material and structure. In the present work a composite films of conducting polymer and GaAs with attractive feature have been synthesized by Electro deposition method and drop casting method respectively. The structure and morphology of the prepared films were studied from XRD and AFM pattern. And optical characteristics of the prepared films were studied from UV spectrometer it shows that the band gap of the prepared thin films of GaAs material is 1.39 ev and voltage current characteristics of the composite films shows the suitability of materials for photovoltaic application.

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