Optical temperature sensing through extraordinary enhancement of green up-conversion emissions for Er-Yb-Mo:Al2O3

被引：82
作者：
Dong, B. [1 ]
Cao, B. S. [1 ]
Feng, Z. Q. [1 ]
Wang, X. J. [2 ]
He, Y. Y. [3 ]
机构：
[1] Dalian Nationalities Univ, Sch Phys & Mat Engn, Dalian 116600, Peoples R China
[2] Peking Univ, Sch Elect Engn & Comp Sci, State Key Lab Adv Opt Commun Syst & Networks, Beijing 100871, Peoples R China
[3] Univ Duisburg Essen, Fac Phys, D-47057 Duisburg, Germany
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2012年 / 165卷 / 01期
基金：
美国国家科学基金会;
关键词：
Er-Yb-Mo:Al2O3; Up-conversion emission; Energy transfer; Optical temperature sensing; FLUORESCENCE EMISSION; THERMOMETRY;
D O I：
10.1016/j.snb.2012.01.068
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The extraordinary enhancement of green up-conversion emissions originated from the H-2(11/2) -> I-4(15/2) and S-4(3/2) -> I-4(15/2) transitions is obtained for the Er-Yb-Mo:Al2O3 with a 976 nm laser diode excitation. It indicates that such green enhancement arises from the high excited state energy transfer with (IF7/2)-F-2, T-3(2)> state of the Yb3+-MoO42- dimer to the F-4(7/2) level of Er3+. Fluorescence intensity ratio (FIR) technique based on the green up-conversion emissions of the Er-Vb-Mo:Al2O3 has been studied as a function of temperature. With an excitation power of 2 mW, the maximum of sensitivity and temperature revolution is approximately 0.0051 K-1 and 0.3 K in the range of 294-973K, respectively. The Er-Yb-Mo:Al2O3 with intense green up-conversion emissions, a higher operating temperature and revolution indicates that it is a promising material for application in optical temperature sensing. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：34 / 37
页数：4
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