Preparation and Luminescence of SrAi2O4:Eu2+, Dy3+ Nano-Particle
来源期刊：JOURNAL OF RARE EARTHS2004年增刊第3期
论文作者：Mi Xiaoyun Xiao Zhiyi Zhang Xiyan Tian Xueyan Hu Jingjie Lu Liping Liu Quansheng
Key words：SrAl2O4: Eu2+; Dy3+; luminescence material; nano-particle; sol-gel method; rare earths;
Abstract: SrAl2O4: Eu2+, Dy3+ nano-particle luminescence material was prepared by sol-gel method. Influences of synthesis conditions on the particle size and luminescence properties of SrAl2O4: Eu2+ , Dy3+ were studied. The synthesis process and the properties of the samples were analyzed by DTA, TGA, XRD, SEM. The result suggested that the formation of SrAl2O4: Eu2+ , Dy3+ sol is a slow heat release process beginning at 500 ℃ and peaking at 759 ℃.SrAl2O4: Eu2+ ,Dy3+ crystalline was formed at 1100 ℃. The luminescence properties of the SrAl2O4: Eu2+ , Dy3+ nanoparticle were compared with the conventional SrAl2O4: Eu2+ , Dy3+ particles. The average particle size of the product is about 30 nm. The excitation spectrum of the sample shows a broad band with peaks at 240, 330, 378 and 425 nm. The emission spectrum is a broadband spectrum with a peak at 523 nm.
Mi Xiaoyun1，Xiao Zhiyi1，Zhang Xiyan1，Tian Xueyan1，Hu Jingjie1，Lu Liping1，Liu Quansheng1
(1.School of Material and Chemical Engineering, Changchun University of Science and Technology, Changchun 130022, China)
Abstract:SrAl2O4: Eu2+, Dy3+ nano-particle luminescence material was prepared by sol-gel method. Influences of synthesis conditions on the particle size and luminescence properties of SrAl2O4: Eu2+ , Dy3+ were studied. The synthesis process and the properties of the samples were analyzed by DTA, TGA, XRD, SEM. The result suggested that the formation of SrAl2O4: Eu2+ , Dy3+ sol is a slow heat release process beginning at 500 ℃ and peaking at 759 ℃.SrAl2O4: Eu2+ ,Dy3+ crystalline was formed at 1100 ℃. The luminescence properties of the SrAl2O4: Eu2+ , Dy3+ nanoparticle were compared with the conventional SrAl2O4: Eu2+ , Dy3+ particles. The average particle size of the product is about 30 nm. The excitation spectrum of the sample shows a broad band with peaks at 240, 330, 378 and 425 nm. The emission spectrum is a broadband spectrum with a peak at 523 nm.
Key words:SrAl2O4: Eu2+; Dy3+; luminescence material; nano-particle; sol-gel method; rare earths;
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