Synthesis and Luminescent Properties of LuAG:Ce^(3+) Transparent Ceramics by Solvo-Thermal Method  

作　　者：WANG Lin-xiang ZHU Heng-jiang WU Ling-yuan DENG Kai-mo GUO Chang-xin YIN Min 

机构地区：[1]Physics Department, University of Science and Technology of China, Hefei 230026, China [2]Department of Physics, Xinjiang Normal University, Urumqi 830054, China [3]Hefei National Laboratory for Physical Sciences at Microscale, Chinese Academy of Sciences, Hefei 230026, China Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China; Xinjiang Normal Univ, Dept Phys, Urumqi 830054, Peoples R China; Chinese Acad Sci, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China

出　　处：《光谱学与光谱分析》2011年第2期308-313,共6页Spectroscopy and Spectral Analysis

基　　金：Project supported by National Nature 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)

摘　　要：The precursor powders of LuAG∶Ce3+ transparent ceramics were synthesized by solvo-thermal method.The crystal structure and morphology of powders were analyzed by means of Fourier transform infra-red spectroscopy,X-ray diffraction and scanning electron microscopy.The precursor powders were sintered into transparent ceramics in vacuum and then in nitrogen without any additive.The surface morphology of the transparent unpolished ceramics was characterized using scanning electron microscopy.Some factors that affect the transparency of ceramics were discussed.The UV-Vis fluorescence excitation and emission spectra of LuAG∶Ce3+ transparent ceramics were measured.The vacuum ultraviolet spectra of transparent ceramics were investigated using the synchrotron radiation as the excitation source.The excitation mechanism of Ce3+ was discussed at different excitation wavelength.The precursor powders of LuAG∶Ce3＋ transparent ceramics were synthesized by solvo-thermal method.The crystal structure and morphology of powders were analyzed by means of Fourier transform infra-red spectroscopy,X-ray diffraction and scanning electron microscopy.The precursor powders were sintered into transparent ceramics in vacuum and then in nitrogen without any additive.The surface morphology of the transparent unpolished ceramics was characterized using scanning electron microscopy.Some factors that affect the transparency of ceramics were discussed.The UV-Vis fluorescence excitation and emission spectra of LuAG∶Ce3＋ transparent ceramics were measured.The vacuum ultraviolet spectra of transparent ceramics were investigated using the synchrotron radiation as the excitation source.The excitation mechanism of Ce3＋ was discussed at different excitation wavelength.

关 键 词：Solvo-thermal LuAG∶Ce3+ Transparent ceramics PHOTOLUMINESCENCE 

分 类 号：O432[机械工程—光学工程]