发光学报, 2018, 39 (3): 301, 网络出版: 2018-04-09  

钬镱双掺氧化镧镥粉体的合成及其光谱分析

Fabrication and Spectral Analysis of Ho3+, Yb3+ Co-doped (LaLu)2O3 Powders
作者单位
1 长春理工大学 化学与环境工程学院, 吉林 长春 130022
2 中国科学院 长春光学精密机械与物理研究所, 吉林 长春 130033
摘要
采用柠檬酸燃烧法制备了Ho,Yb∶(LaLu)2O3纳米粉体,确定了其制备的适宜条件。制得的粉体分散性较好,粒径均匀,平均粒径约为55 nm。研究了掺杂不同摩尔分数Ho3+和Yb3+对粉体荧光光谱的影响,980 nm泵浦源激发下得到的粉体的上转换光谱显示,粉体发出484 nm蓝光(5F3→5I8)、551 nm绿光(5S2/5F4→5I8)、660 nm红光(5F5→5I8)。并讨论了掺杂离子Ho3+-Yb3+的上转换发光机制。
Abstract
The powders of Ho,Yb∶(LaLu)2O3 were prepared by citric acid combustion method. The preparation conditions of the powders were determined. The as-prepared particles are of near-spherical shape, and weak agglomeration, the average particle size was about 55 nm. The effects of different mole fraction Ho3+ and Yb3+ on the fluorescence spectra of the powders were studied. Under the excitation of 980 nm, the powders can emit blue-ray appeared at 484 nm, corresponding to the energy level transition of Ho3+ from 5F3 to 5I8, green light appeared at 551 nm, corresponding to the energy level transition of Ho3+ from 5S2/5F4 to 5I8, and red light at 660 nm, corresponding to the energy level transition of Ho3+ from 5F5 to 5I8. The upconversion luminescence mechanism of Ho3+-Yb3+ in co-doped system was discussed.

李剑, 代雨航, 朱忠丽, 张莹. 钬镱双掺氧化镧镥粉体的合成及其光谱分析[J]. 发光学报, 2018, 39(3): 301. LI Jian, DAI Yu-hang, ZHU Zhong-li, ZHANG Ying. Fabrication and Spectral Analysis of Ho3+, Yb3+ Co-doped (LaLu)2O3 Powders[J]. Chinese Journal of Luminescence, 2018, 39(3): 301.

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