Preparation and Fluorescent Property of Eu-Doped High Silica Glasses
来源期刊：JOURNAL OF RARE EARTHS2006年增刊第2期
论文作者：Tomoko Akai Qiao Yanbo Zhou Qinling Zhu Congshan Da Ning Peng Mingying Yang Lüyun Wang Chen
Key words：europium ions; high silica glass; redox sintering; energy transformation; rare earths;
Abstract: A method to fabricate europium ions doped-high silica glass for transparent fluorescence materials based on the fabrication and sintering technique of nano-porous silica glass was reported. Glasses impregnated with Eu ions and sintered at above 1150 ℃ in a reduction atmosphere show a very strong blue light from an emission band at about 430 nm due to the 4f65d→4f7(8S7/2) transition of the Eu2+ ions. On the other hand, the Eu-doped glass obtained by co-impregnated with Y3+ and V5+ ions and sintering in oxidation atmosphere behaves a very strong red emission band at about 615 nm with a UV excitation. An appearance of vanadate band in the excitation spectrum of Eu3+, Y3+ and V5+ ions co-doped high silica glass implies an effective energy transferring from VO43- to Eu3+ and effective excitation of Eu3+ by about 500 nm strong broad emission of VO43-.
Tomoko Akai1，Qiao Yanbo2，Chen Danping2，Zhou Qinling2，Zhu Congshan2，Da Ning2，Peng Mingying2，Yang Lüyun2，Wang Chen2
(1.National Institute of Advanced Industrial Science and Technology, Osaka 563-8577, Japan;
2.Photo Craft Project, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
3.Graduate School, Chinese Academy of Sciences, Beijing 100080, China)
Abstract:A method to fabricate europium ions doped-high silica glass for transparent fluorescence materials based on the fabrication and sintering technique of nano-porous silica glass was reported. Glasses impregnated with Eu ions and sintered at above 1150 ℃ in a reduction atmosphere show a very strong blue light from an emission band at about 430 nm due to the 4f65d→4f7(8S7/2) transition of the Eu2+ ions. On the other hand, the Eu-doped glass obtained by co-impregnated with Y3+ and V5+ ions and sintering in oxidation atmosphere behaves a very strong red emission band at about 615 nm with a UV excitation. An appearance of vanadate band in the excitation spectrum of Eu3+, Y3+ and V5+ ions co-doped high silica glass implies an effective energy transferring from VO43- to Eu3+ and effective excitation of Eu3+ by about 500 nm strong broad emission of VO43-.
Key words:europium ions; high silica glass; redox sintering; energy transformation; rare earths;
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