Er3+/Yb3+ codoped Gd2O3 nano-phosphor for optical thermometry

被引：286
作者：
Singh, Sunil Kumar [1 ]
Kumar, Kaushal [1 ]
Rai, S. B. [1 ]
机构：
[1] Banaras Hindu Univ, Dept Phys, Laser & Spect Lab, Varanasi 221005, Uttar Pradesh, India
来源：
SENSORS AND ACTUATORS A-PHYSICAL | 2009年 / 149卷 / 01期
关键词：
Er3+-Yb3+ codoped Gd2O3; FIR; Optically active material; High temperature measurement; TEMPERATURE; SENSOR; GLASS; TELLURITE; EMISSION; PROBE;
D O I：
10.1016/j.sna.2008.09.019
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Combustion synthesized Gd2O3: Er3+/Yb3+ nanocrystalline phosphor has been developed and used as a temperature sensor. Frequency upconverted emissions from two thermally coupled excited states H-2(11/2) and S-4(3/2) of Er3+ centered at 523 and 548 nm in the phosphor pumped by NIR source were recorded in the temperature range 300-900 K. The maximum sensitivity derived from the FIR technique of the green upconversion emission is approximately 0.0039 K-1. The results imply that Er3+/Yb3+ codoped Gd2O3 phosphor can play an important role in high temperature measurements with a better sensitivity. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：16 / 20
页数：5
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