| Optical Spectroscopy Properties of KMgF3 ：Eu^2＋ Nanocrystals and Powder Synthesized by Microemulsion and Solvothermal Process |
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| 作者姓名： | HUA Rui-nian SUN Hong-jie JIANG Hui-ming SHI Chun-shan |
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| 作者单位： | HUA Rui-nian~ 1，SUN Hong-jie~ 1，JIANG Hui-ming~ 1 and SHI Chun-shan~ 2 1. College of Life Science，Dalian Nationalities University，Dalian 116600，P.R. China; 2. Key Laboratory of Rare Earth Chemistry and Physics，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun 130022，P.R. China |
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| 基金项目： | 中国科学院资助项目，大连民族学院校科研和教改项目 |
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| 摘 要： | IntroductionPerovskite complex fluorides have attracted great ainterest due to their particular physical properties, suchas piezoelectric characteristics1], ferromagnetic prop-erty2], nonmagnetic insulator behavior3], and photo-luminescence host functi…
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| 关 键 词： | KMgF_3 ∶Eu(Ⅱ) phosphor Optical property Microemulsion Solvothermal process Nanocrystal |
| 文章编号： | 1005-9040（2006）-04-423-04 |
| 收稿时间： | 2005-10-27 |
Optical Spectroscopy Properties of KMgF3:Eu Nanocrystals and Powder Synthesized by Microemulsion and Solvothermal Process |
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| HUA Rui-nian SUN Hong-jie JIANG Hui-ming SHI Chun-shan.Optical Spectroscopy Properties of KMgF3:Eu Nanocrystals and Powder Synthesized by Microemulsion and Solvothermal Process[J].Chemical Research in Chinese University,2006,22(4):423-426. |
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| Authors: | Rui-nian HUA Hong-jie SUN Hui-ming JIANG Chun-shan SHI |
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| Institution: | aCollege of Life Science, Dalian Nationalities University, Dalian 116600, P. R. China;bKey Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China |
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| Abstract: | Nanocrystals and powders of KMgF3 doped with Eu2 were synthesized by the microemulsion method and the solvothermal process, respectively. The emission and excitation spectra of KMgF3:Eu2 phosphors were measured and compared with those of the samples synthesized through a solid state reaction, Bridgman-Stockbarger method, and mild hydrothermal technique. The KMgF3:Eu2 samples synthesized by means of the microemulsion method and the solvothermal process show only a sharp emission peak located at 360 nm in the emission spectra, which arises from the f→f(6P7/2→8S7/2) transition of Eu2 . The broad emission bands appear at 420 nm, which arises from Eu2 ←O2- cannot be observed(in the mild hydrothermal and single crystal samples, the emission peak at 420 nm besides the emission of Eu2 at 360 nm is observed). In the excitation spectrum of the KMgF3:Eu2 samples synthesized by the microemulsion method and the solvothermal process, the excitation peaks show an intensive blue shift. The blue shift can be attributed to the lower oxygenic content in the KMgF3:Eu2 samples synthesized by the microemulsion method and the solvothermal process. |
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| Keywords: | Optical property Microemulsion Solvothermal process Nanocrystal |
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