Structure, up-conversion luminescence and optical temperature sensitive properties of glass ceramics containing Ca5(PO4)3F with double luminescence centers
| Autor: | Li Li, Guohua Chen, Fei Shang, Junhao Xing |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
Materials science
Process Chemistry and Technology Fluorapatite Analytical chemistry Temperature measurement Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Nanocrystal law visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Temperature sensitive Ceramic Crystallization Luminescence Sensitivity (electronics) |
| Zdroj: | Ceramics International. 48:1098-1106 |
| ISSN: | 0272-8842 |
| Popis: | In this study, CaF2–ZnO–P2O5–CaO–SiO2 system glass ceramics containing Ca5(PO4)3F 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. |
| Databáze: | OpenAIRE |
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