Structure Property and Visible Upconversion of Er3+ Doped Gd2O3 Nanocrystals

被引：0
|
作者：
郭海
张慰萍
尹民
楼立人
夏上达
机构：
[1] Department of Physics, University of Science and Technology of China, Hefei 230026, China ,Department of Physics, University of Science and Technology of China, Hefei 230026, China ,Structure Research Laboratory, University of Science and Technology of Chi
[2] Department of Physics, University of Science and Technology of China, Hefei 230026, China ,Department of Physics, University of Science and Technology of China, Hefei 230026, China ,Department of Physics, University of Science and Technology of China, Hefe
[3] Structure Research Laboratory, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026, China
来源：
Journal of Rare Earths | 2004年 / 03期
关键词：
optics; upconversion luminescence; sol-gel; Gd2O3∶Er3+; rare earths;
D O I：
暂无
中图分类号：
O614 [金属元素及其化合物];
学科分类号：
070301 ; 081704 ;
摘要：
Gd2O3∶Er nanoparticles were prepared by a simple sol-gel method. The structure properties of Gd2O3∶Er were studied by X-ray diffraction, transmission electron microscopy, Raman spectroscopy and Fourier transform infrared spectroscopy. The visible up-converted luminescence spectra of Er3+ were investigated under excitation to (（）4I9/2) level by 785 nm laser. Laser power, Er3+ ion concentration and temperature dependences of the upconverted emissions were investigated to understand the upconversion mechanisms. Excited state absorption and energy transfer process are discussed as the possible mechanisms for the upconversion.
引用
收藏
页码：365 / 369
页数：5
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