Synthesis and Luminescent Properties of GdAlO3:RE by Combustion Process
来源期刊：JOURNAL OF RARE EARTHS2004年增刊第3期
论文作者：Liu Qingfeng Liu Qian Luo Lan
Key words：gadolinium-aluminum perovskite; citrate-nitrate combustion; luminescence; rare earths;
Abstract: Pure GdAlO3: RE (RE = Eu, Pr or Tb) crystalline phase was formed at 900 ℃ with the precursor prepar by nitric-citric combustion process. The synthesis process was studied by XRD, TG-DSC and IR spectra. The analysis results show that there are three main stages in combustion process: ( 1 ) water evaporation and organic compound pyrolysis; (2) combusting reaction; (3)pure crystal formation. GdAlO3: RE powder shows good luminescent properties under 254 nm excitation and was proved to be a good kind of phosphors.
Liu Qingfeng1，Liu Qian1，Luo Lan2
(1.State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai 200050, China;
2.School of Material Science and Engineering, Nanchang University, Nanchang 330047, China)
Abstract:Pure GdAlO3: RE (RE = Eu, Pr or Tb) crystalline phase was formed at 900 ℃ with the precursor prepar by nitric-citric combustion process. The synthesis process was studied by XRD, TG-DSC and IR spectra. The analysis results show that there are three main stages in combustion process: ( 1 ) water evaporation and organic compound pyrolysis; (2) combusting reaction; (3)pure crystal formation. GdAlO3: RE powder shows good luminescent properties under 254 nm excitation and was proved to be a good kind of phosphors.
Key words:gadolinium-aluminum perovskite; citrate-nitrate combustion; luminescence; rare earths;
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