| Photoluminescence properties of LaF3：Eu^3＋ nanoparticles prepared by refluxing method |
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| 引用本文： | 王振领,李敏,王畅,常加忠,石恒真,林君.Photoluminescence properties of LaF3：Eu^3＋ nanoparticles prepared by refluxing method[J].中国稀土学报(英文版),2009,27(1):33-37. |
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| 作者姓名： | 王振领 李敏 王畅 常加忠 石恒真 林君 |
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| 作者单位： | WANG Zhenling,LI Min,WANG Chang,CHANG Jiazhong,SHI Hengzhen(Analytical and Testing Center, Zhoukou Normal University, Zhoukou 466000, China);LIN Jun(State Key Lablratory of Application of Rare Earth Resources Changchun Institute of Applied Chinese Academy of Sciences Changchun 130022 China)
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| 基金项目： | 河南省自然科学基金，Startup Fund for Doctoral Program of Zhoukou Normal University |
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| 摘 要： |
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| 关 键 词： | LaF3 表面修饰 纳米粒子 铕掺杂 光致发光特性 回流法 场发射扫描电子显微镜 X射线衍射 |
| 收稿时间： | 4 April 2008 |
Photoluminescence properties of LaF3: Eu3+ nanoparticles prepared byrefluxing method |
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| WANG Zhenling,LI Min,WANG Chang,CHANG Jiazhong,SHI Hengzhen,LIN Jun.Photoluminescence properties of LaF3: Eu3+ nanoparticles prepared byrefluxing method[J].Journal of Rare Earths,2009,27(1):33-37. |
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| Authors: | WANG Zhenling LI Min WANG Chang CHANG Jiazhong SHI Hengzhen LIN Jun |
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| Affiliation: | 1. Analytical and Testing Center, Zhoukou Normal University, Zhoukou 466000, China; 2. State Key Laboratory of Application of Rare Earth Resources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China) |
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| Abstract: | The europium-doped LaF3 nanoparticles were prepared by refluxing method in glycerol/water mixture and characterized with X-ray diffraction(XRD), field emission scanning electron microscopy(FE-SEM), UV-vis diffuse reflectance spectrum, and photoluminescence spectra. The results of XRD indicated that the obtained LaF3: Eu3+ nanoparticles were well crystallized with a hexagonal structure. The FE-SEM image illustrated that the LaF3: Eu3+ nanoparticles were spherical with an average size around 30 nm. Under irradiation of UV light, the emission spectrum of LaF3: Eu3+ nanoparticles exhibited the characteristic line emissions arising from the 5D0→7FJ (J=1, 2, 3, 4) transitions of the Eu3+ ions, with the dominating emission centered at 590 nm. In addition, the emissions from the 5D1 level could be clearly observed due to the low phonon energies (-350 cm-1) of LaF3 matrix. The optimum doping concentration for LaF3: Eu3+ nanoparticles was determined to be 20mol.%. |
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| Keywords: | LaF3: Eu3 doped luminescence refluxing method nanoparticles rare earths |
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