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Study of cerium ion in (Y0.95La0.05)2O3:Ce

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【作者】 王晓纯； 张慰萍； 王林香； 游宝贵； 尹民；

【Author】 WANG Xiaochun , ZHANG Weiping , WANG Linxiang, YOU Baogui , YIN Min (Department of Physics, University of Science and Technology of China, Hefei 230026, China)

【机构】 Department of Physics, University of Science and Technology of China；

【摘要】 (Y0.95La0.05)2O3: Ce3+ nano-powder was synthesized by co-precipitation method and sintered at 800 and 900 oC. All the samples were cubic phase characterized by X-ray diffraction (XRD) analysis. The samples sintered at the lower temperature exhibited luminescence. According to the distinguishable structure of Ce 3d peaks and the shift of O 1s lines in the X-ray photoelectron spectroscopy (XPS), luminescence was further confirmed to originate from Ce3+ ions. Effects of introducing La3+ into Y2O3 were discussed and it showed that under 800 oC calcining, the existing of La3+ made it more easy for Ce3+ to dope into the host lattice.

【Abstract】 (Y0.95La0.05)2O3: Ce3+ nano-powder was synthesized by co-precipitation method and sintered at 800 and 900 oC. All the samples were cubic phase characterized by X-ray diffraction (XRD) analysis. The samples sintered at the lower temperature exhibited luminescence. According to the distinguishable structure of Ce 3d peaks and the shift of O 1s lines in the X-ray photoelectron spectroscopy (XPS), luminescence was further confirmed to originate from Ce3+ ions. Effects of introducing La3+ into Y2O3 were discussed and it showed that under 800 oC calcining, the existing of La3+ made it more easy for Ce3+ to dope into the host lattice.

【关键词】 cerium； lanthanum； Y2O3； XPS； emission； rare earths；
【Key words】 cerium； lanthanum； Y2O3； XPS； emission； rare earths；
【基金】 Project supported by the National Natural Science Foundation of China (10774140);Knowledge Innovation Project of the Chinese Academy of Sciences (KJCX2-YW-M11);Specialized Research Fund for the Doctoral Program of Higher Education (20060358054);Special Foundation for Talents of Anhui Province, China (2007Z021)
  • 【文献出处】 Journal of Rare Earths ,稀土学报(英文版) , 编辑部邮箱 ,2010年04期
  • 【分类号】O614.332
  • 【被引频次】1
  • 【下载频次】44
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