Synthesis and Upconversion Luminescence Properties of CaF2:Yb3+/Tm3+ Microspheres

被引：4
|
作者：
Jiang, Tao [1 ]
Zhao, Dan [1 ]
Qin, Weiping [1 ]
机构：
[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2011年 / 11卷 / 11期
基金：
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词：
CaF2; Microspheres; Upconversion; Nanoparticles; Size Effect; HYDROTHERMAL SYNTHESIS; CDSE NANOCRYSTALLITES; HYDROXIDE NANORODS; NANOWIRES; PHOTOLUMINESCENCE; NANOPARTICLES; NANOTUBES; COMPLEXES; LA(OH)(3); NANOBELTS;
D O I：
10.1166/jnn.2011.5253
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
CaF2:Yb3+/Tm3+ microspheres were synthesized by using a simple hydrothermal method. Their structures and morphologies were characterized by X-ray diffraction (XRD) and field-effective scanning electron microscopy (FESEM). The microspheres were formed from a large number of nanospheres with almost the same diameter after annealing. The growth mechanism of the microspheres was discussed. Strong ultraviolet (UV) and blue upconversion (UC) emission from the CaF2 microspheres was observed under 980 nm excitation. The enhancement of the UV UC emission was attributed to the size effect of the nanoscale particles.
引用
收藏
页码：9916 / 9919
页数：4
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