Abstract
A new strategy of optical thermometry is realized by long persistent luminescence phosphor , , (SAEDT). Under different temperatures, SAEDT shows bright afterglow emissions after cessation of the UV excitation. The afterglow color of the SAEDT sample is blue at 60 K and gradually changed into green at 240 K. The normalized afterglow spectra at different temperatures give a dramatic change of fluorescence intensity ratio between the blue band and the green band. Not only has this material exhibited a high absolute sensitivity and relative sensitivity for temperature sensing, but it also has the great advantage of eliminating the heating effect due to avoidance of real-time direct excitation.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
Haibo Liu, Baoluo Feng, Li Luo, Chunlong Han, and Peter A. Tanner
Opt. Mater. Express 6(11) 3375-3385 (2016)
Lulu Li, Panpan Li, Yixi Wu, Jing Li, Xinlian Zhang, Shiqing Xu, and Junjie Zhang
Opt. Lett. 49(2) 294-297 (2024)
Qianyang Chang, Xianju Zhou, Xiao Zhou, Lingni Chen, Guotao Xiang, Sha Jiang, Li Li, Yanhong Li, and Xiao Tang
Opt. Lett. 45(13) 3637-3640 (2020)