期刊
CERAMICS INTERNATIONAL
卷 48, 期 1, 页码 1098-1106出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2021.09.195
关键词
Silicate glass ceramics; Fluorescence; Optical temperature measurement
资金
- National Natural Science Foundation of China [61865003]
- Natural Science Foundation of Guangxi Province [2017GXNSFDA198023]
Glass ceramics containing Ca-5(PO4)(3)F nanocrystals were prepared and studied for their structure, up-conversion luminescence properties, and energy transfer. Dual-mode temperature measurement was achieved using fluorescence intensity ratio technology. The study showed potential application prospects of fluoroapatite transparent glass ceramics in the optical temperature measurement field.
In this study, CaF2-ZnO-P2O5-CaO-SiO2 system glass ceramics containing Ca-5(PO4)(3)F nanocrystals were prepared via melting and crystallization, and their structure, up-conversion luminescence properties and energy transfer were investigated. Owing to the different temperature dependences of the three emitting bands at 523, 547 and 659 nm, dual-mode temperature measurement can be realized according to the employed fluorescence intensity ratio technology. Using thermal-coupled energy levels, the maximum relative sensitivity (Sr-max) and absolute sensitivity (Sa-max) were found to be 1.71% K-1 and 0.69% K-1, respectively. Moreover, the maximum relative sensitivity (Sr-max) and absolute sensitivity (Sa-max) were found to be 2.19% K-1 and 0.11% K-1, respectively, based on the nonthermal coupled energy levels. This shows that fluoroapatite transparent glass ceramics have latent application prospects in the optical temperature measurement field.
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