2021
DOI: 10.20964/2021.12.37
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Fabrication of a Co3O4/ZnO Heterostructure by Electrochemical Deposition

Abstract: Co3O4 thin films were fabricated using electrochemical deposition (ECD). Co(OH)2 precursor films were deposited galvanostatically from an aqueous solution containing Co(NO3)2 and NH4NO3, and subsequently converted to Co3O4 by annealing in the air ambient. The Co3O4 films had two absorption edges corresponding to energy levels of 1.5 and 2.0 eV, and exhibited a clear p-type photo response in the photoelectrochemical measurement. The pn heterostructures were fabricated with ZnO as the n-type partner. ZnO was fir… Show more

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