Luminescence characterization and synthesis of [gamma]-LiAlO2:Eu^sup 3+^ by gel combustion

Luminescence characterization and synthesis of [gamma]-LiAlO2:Eu^sup 3+^ by gel combustion

γ-LiAlO2:Eu^sup 3+^(Eu^sup 3+^:LAO) phosphor was obtained by gel combustion method using LiNO3, Al(NO3)^sub 3^·9H2O, Eu(NO3)^sub 3^·6H2O and citric acid as raw materials. The structure, morphology and luminescence were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (...

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Veröffentlicht in:Journal of Wuhan University of Technology. Materials science edition 2011-06, Vol.26 (3), p.434
Hauptverfasser: Ji, Hongxin, Yang, Dingming, Hu, Wenyuan, Ye, Xu, Xia, An
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creator Ji, Hongxin
Yang, Dingming
Hu, Wenyuan
Ye, Xu
Xia, An
description γ-LiAlO2:Eu^sup 3+^(Eu^sup 3+^:LAO) phosphor was obtained by gel combustion method using LiNO3, Al(NO3)^sub 3^·9H2O, Eu(NO3)^sub 3^·6H2O and citric acid as raw materials. The structure, morphology and luminescence were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), photoluminescence (PL). The results demonstrated that the phosphor was pure-phase of flaky tetragonal crystal system with a mean size of around 1 μm. The strongest excitation peak was at 254 nm, belonging to the broadband excitation and the maximum emission peak was at 613 nm, corresponding to the ^sup 5^ D ^sub 0^[arrow right]^sup 7^ F ^sub 2^ transition of Eu^sup 3+^. Luminous intensity is closely related to the calcination temperature and doping concentration of Eu^sup 3+^.[PUBLICATION ABSTRACT]
doi_str_mv 10.1007/s11595-011-0244-y
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title Luminescence characterization and synthesis of [gamma]-LiAlO2:Eu^sup 3+^ by gel combustion
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