Luminescence and self-referenced optical temperature sensing performance in Ca2YZr2Al3O12:Bi3+,Eu3+ phosphors
| Autor: | Hai Guo, Jiafei Zhang, XueYun Liu, Fangfang Hu, Rongfei Wei, Zhigang Zheng |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Temperature sensing Process Chemistry and Technology Energy transfer Doping Analytical chemistry Phosphor 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Fluorescence intensity 0103 physical sciences Materials Chemistry Ceramics and Composites Ultraviolet light 0210 nano-technology Luminescence Excitation |
| Zdroj: | Ceramics International. 46:6154-6159 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2019.11.081 |
| Popis: | Ca2YZr2Al3O12:Bi3+,Eu3+ phosphors were elaborated by a traditional solid-state reaction method. The luminescence of Ca2YZr2Al3O12:Bi3+ samples, energy transfer from Bi3+ to Eu3+, and the temperature sensing properties of Ca2YZr2Al3O12:Bi3+,Eu3+ samples have been systematically researched. Under the excitation of ultraviolet light, Bi3+ single doped phosphors give 313 and 392 nm emission bands, which origin from the substitutions of Bi3+ instead of Ca2+ and Y3+ sites, respectively. And the color-adjustable emission from blue to red were observed by increasing Eu3+ content in Ca2YZr2Al3O12:Bi3+,Eu3+ samples. Relying on different temperature dependent variation tendency, the fluorescence intensity ratio (FIR) values present outstanding temperature sensing properties. The absolute and relative sensitivity can be up to 0.826 %K-1 and 0.664 %K-1, respectively. All above results suggest that Ca2YZr2Al3O12:Bi3+,Eu3+ phosphor is a potential alternative for optical thermometer. |
| Databáze: | OpenAIRE |
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