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Photo-Current Enhancement in the Cu/rGO/n-Cu2O Photo-Electrode at Electrolyte Interface

Journal of Scientific and Technical Research

Volume 6 Issue 1

Published: 2016
Author(s) Name: S.P.A.U.K. Samarakoon, K.A.S.K. Hemachandra, C.A.N. Fernando | Author(s) Affiliation:
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Abstract

A simple method was found to fabricate Cu/rGO/n-Cu2O photo-electrode to enhance the photocurrent with compared to the device Cu/n-Cu2O photo-electrode at semiconductor-electrolyte interface. Reduced graphene oxide (rGO) was fabricated on a well cleaned copper sheet using electro-phoretic deposition (EPD) technique to fabricate Cu/rGO. Thereafter Cu/rGO electrode was boiled in a 10-4M CuSO4 solution to fabricate Cu/rGO/n-Cu2O photo-electrode for the first time. Here The rGO acts as a good electron acceptor ton-Cu2O photo-generated electrons enhancing the charge separation process suppressing the recombination process of the photo-generated charge carriers.

Keywords: n-Cu2O, rGO, Photoelectron Chemical Cell

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