METHOD FOR PRODUCING CONDUCTIVE ZINC OXIDE FILM

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United States of America Patent

APP PUB NO 20140008109A1
SERIAL NO

13978082

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Abstract

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An objective is to provide a novel preparation method for a conductive ZnO film which realizes large area and mass productions with low costs and low environment loads. The crystal of zinc oxide (ZnO) is deposited on a substrate by a precipitation method using liquidous solution method under the presence of citric acid. The citric acid adsorbs on the surface of (0001) face of ZnO to suppress anisotropic growth to a c axis direction of the crystal in the precipitation reaction and to form dense crystal film on the surface of the substrate. Then, the organic acid incorporated in the film is photo-decomposed by irradiating UV light to the prepared ZnO crystalline film. As the result, carriers trapped by the organic acid is released to the crystalline film so as to provide an adequate conductivity.

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Patent OwnerAddress
NATIONAL INSTITUTE FOR MATERIALS SCIENCETSUKUBA-SHI IBARAKI 305-0047

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsushita, Nobuhiro Kanagawa, JP 4 9
Ohashi, Naoki Ibaraki, JP 35 161
Okada, Kiyoshi Kanagawa, JP 15 276
Wagata, Hajime Kanagawa, JP 1 0

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