高等学校化学学报

高等学校化学学报 ›› 2006, Vol. 27 ›› Issue (2): 215.

• 研究简报 • 上一篇    下一篇

BaLiF3:Ce 3+纳米粒子的制备及其光谱特性

朱国贤1,2, 连洪州2, 莫凤珊1,2， 石春山2   

  1. 1. 湛江师范学院生命科学与化学学院, 湛江 524048;
    2. 中国科学院稀土化学与物理重点实验室, 长春 130022
  • 收稿日期:2005-04-14 出版日期:2006-02-10 发布日期:2006-02-10
  • 通讯作者: 石春山(1939年出生)，男，研究员，博士生导师，从事稀土固体化学研究. E-mail: cshi@ciac.jl.cn
  • 基金资助:

    国家自然科学基金(批准号： 90201032)资助

Synthesis and Fluorescence Property of BaLiF3∶Ce3+ Nanoparticles

ZHU Guo-Xian 1,2, LIAN Hong-Zhou2, MO Feng-Shan 1,2, SHI Chun-Shan2   

  1. 1. School of Life Science and Chemistry, Zhanjiang Normal College, Zhanjiang 524048, China;
    2. Key Laboratory of Rare Earth Chemistry and Physics, Chinese Academy of Sciences, Changchun 130022, China
  • Received:2005-04-14 Online:2006-02-10 Published:2006-02-10
  • Contact: SHI Chun-Shan,E-mail: cshi@ciac.jl.cn

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摘要：

BaLiF3属立方钙钛矿型复合氟化物, 作为高效闪烁晶体可用于热中子检测［1］. 由于其能带隙宽, 易于实现各种不同价态稀土离子掺杂, 可以获得许多可调谐性质, 因此它也是比较理想的光学功能材料的基质［2］. Ce3+激活的BaLiF3晶体作为紫外发射的短波固体激光材料和光放大材料的研究多有报道［3~5］

关键词: BaLiF3∶Ce3+; 微乳液; 纳米粒子; 光谱

Abstract:

Abstract The complex fluoride BaLiF3 and BaLiF3∶Ce3+ nanocrystals were synthesized in cetyltrimethylammonium bromide(CTAB)/2octanol/water microemulsion systems. XRD analysis shows that the products were single phase and XPS analysis shows the oxygen content was low. The result of ESEM confirms that the average size of the BaLiF3 nanocrystals was 28 nm in diameter. The emission peak of the BaLiF3∶Ce3+ nano-particles synthesized by microemulsion shows obvious blue shift in comparison with that of BaLiF3∶Ce3+ synthesized by the reaction at a high temperature and full width at half maximum(FWHM) of emission band was broaden.

Key words: BaLiF3∶Ce3+ ; Microemulsion; Nanoparticles; Fluorescence

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