Synthesis and Properties of Nanocrystalline Copper Indium Oxide Thin Films Deposited by Rf Magnetron Sputtering
Abstract:Nanocrystalline copper indium oxide (CuInO2) thin films with particle size ranging from 25 nm to 71nm have been synthesized from a composite target using reactive Rf magnetron sputtering technique. X-ray photoelectron spectroscopy (XPS) combined with glancing angle X-ray diffraction (GAXRD) analysis confirmed the presence of delafossite CuInO2 phase in these films. The optical absorption studies show the presence of two direct band gaps at 3.3 and 4.3 eV, respectively. The resistance versus temperature measurements show thermally activated hopping with activation energy of 0.84 eV to be the conduction mechanism.
Document Type: Research Article
Publication date: 2008-08-01
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