| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7906140 | Optical Materials | 2018 | 5 Pages |
Abstract
In this paper, Nd3+/Yb3+ codoped SrWO4 phosphors for temperature sensing are investigated. Firstly, the doping ratio of Nd3+ and Yb3+ was optimized. Then, under a 980â¯nm excitation, the temperature response of the near infrared (NIR) upconversion emission spectra in the temperature range of 313â¯K-453â¯K was characterized. The results show that the NIR emission peaks increase notably with the increase of temperature. With the fluorescence intensity ratio (FIR) technique, thermal sensing property of the optimized phosphor was investigated. A maximum thermal sensitivity of 0.02857â¯Kâ1 (I801/I869) at 453â¯K was achieved, which is higher than that of the other previously reported similar materials. The minimum temperature uncertainty is about 1â¯Kâ¯at 453â¯K. The results reveal that SrWO4: Nd3+/Yb3+ is a promising material for optical thermometry.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Huiling Song, Qun Han, Xiaoyun Tang, Xueru Zhao, Kun Ren, Tiegen Liu,