Author： Chen Yuanqing Zhao Gaoyang Yan Fuxue
Publisher： Springer Publishing Company
ISSN： 0928-0707
Source： Journal of Sol-Gel Science and Technology, Vol.54, Iss.3, 2010-06, pp. : 325-328
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Abstract
Using zinc acetate and cobalt acetate as raw materials, isopropanol as solvent, and monoethanolamine as stabilizer, photosensitive Co-doped ZnO sol was prepared by chemical modification with benzoylacetone. Chelate rings of benzoylacetone with zinc ions are formed in the Co-doped ZnO sol and corresponding gel films. Irradiation of the gel film by a UV lamp in air leads to decomposition of the chelate ring. Selective irradiation followed by leaching and annealing gave rise to the formation of Co-doped ZnO fine patterns. The Co-doped ZnO film prepared using the photosensitive sol–gel method had a wurtzite structure and showed room-temperature ferromagnetic property.
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