National Changhua University of Education Institutional Repository : Item 987654321/17430
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题名: Ferromagnetism Study of Co0.2Mg x Zn0.8−x O Films Prepared by the Sol–gel Method
作者: Lin, Yow-Jon;Tsai, Chia-Lung;Liu, Chia-Jyi;Horng, Lance;Shih, Yu-Tai;Wang, Mu-Shan;Jhang, Chuan-Sheng;Huang, Chao-Shien
贡献者: 光電科技研究所
关键词: ZnO;Ferromagnetism;Defect;Photoluminescence;Characterization
日期: 2009-06
上传时间: 2013-10-02T08:37:09Z
出版者: SpringLink
摘要: Co0.2MgxZn0.8-xO films prepared with different molar ratio of magnesium acetate to zinc acetate were deposited on substrates by the sol–gel technique. X-ray diffraction, photoluminescence (PL) and ferromagnetism measurements were used to characterize the Co0.2Mgx Zn0.8-xO diluted magnetic semiconductors. The acceptorlike defects were determined in the PL band and the intensity of the acceptor-related PL increased with increasing Mg concentration. Therefore, an increase in the number of the acceptor-like defects (zinc vacancies especially) in the Co0.2MgxZn0.8-xO film may lead to the enhancement of the magnetic properties. It is worth noting that changes in Mg concentration and the number of the acceptor-like defects are important issues for producing strong ferromagnetism Co0.2MgxZn0.8-xO films prepared by the sol–gel method.
關聯: Journal of Sol-Gel Science and Technology, 52(1): 109-112
显示于类别:[光電科技研究所] 期刊論文

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