Luminescence Characterization and Synthesis of γ-LiAlO_2：Eu~（3＋） by Gel Combustion

γ-LiAlO2：Eu3＋（Eu3＋：LAO） phosphor was obtained by gel combustion method using LiNO3,Al（NO3）3·9H2O,Eu（NO3）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）.T...

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Bibliographic Details
Published in:武汉理工大学学报：材料科学英文版 2011, Vol.26 (3), p.434-438
Main Author: JI Hongxin YANG Dingming HU Wenyuan YE Xu XIA An
Format: Article
Language:English
Subjects:
LiAlO2
光致发光
凝胶
合成
扫描电子显微镜
欧盟
燃烧
表征
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Summary:γ-LiAlO2：Eu3＋（Eu3＋：LAO） phosphor was obtained by gel combustion method using LiNO3,Al（NO3）3·9H2O,Eu（NO3）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 5D0→7F2 transition of Eu3＋.Luminous intensity is closely related to the calcination temperature and doping concentration of Eu3＋.
ISSN:1000-2413
1993-0437