Energy transfer and 2 μm emission in Tm3+/Ho3+ co-doped (Y0.87La0.1Zr0.03)2O3 nanopowders*

被引：5
作者：
Chen, Yaqian [1 ]
Wang, Huanping [1 ]
Zhang, Xiaoting [1 ]
Xiao, Zhen [1 ]
Yang, Qinghua [1 ]
Lei, Ruoshan [1 ]
Deng, Degang [1 ]
Huang, Lihui [1 ]
Xu, Shiqing [1 ]
机构：
[1] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
来源：
JOURNAL OF RARE EARTHS | 2018年 / 36卷 / 05期
关键词：
Emission spectral; Tm3+/Ho3+; Y2O3; La2O3-ZrO2; Nanopowders; Rare earths; TRANSPARENT CERAMICS; HO-YAG; LASER; TM; OPERATION; SINTERABILITY; TEMPERATURE; PROFILES; CRYSTAL; LA2O3;
D O I：
10.1016/j.jie.2017.11.011
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
(Y0.87La0.1Zr0.03)(2)O-3 nanopowders doped with various concentrations of Tm3+ and Ho3+ were prepared by the citrate method. The standard cubic Y2O3 phase can be matched in the Tm3+/Ho3+ co-doped (Y0.87La0.1Zr0.03)(2)O-3 nanopowders. The nanopowders exhibit average particle sizes of 40, 60, 80 and 100 nm after calcinated at 900,1000,1100 and 1200 degrees C, respectively. The energy transfer from Tm3+ to Ho3+ and the optimum fluorescence emission around 2 mu m were investigated. Results indicate that the emission bands at around 1.86 and 1.95 pm correspond to (3)F4 ->(3)H6 transition of Tm3+ and I-5(7) -> I-5(8) transition of Ho3+, respectively. Better spectral properties were achieved in Tm3+/Ho3+ co-doped (Y0.87La0.1Zr0.03)(2)O-3 nanopowders with the average size of 100 nm obtained at the conditions of the treatment of precursors calcinated at 1200 degrees C for 2 h doped with 1.5 mol% Tm3+ and 1 mol% Ho3+. (C) 2018 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：468 / 473
页数：6
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