التفاصيل البيبلوغرافية
| العنوان: |
Upconversion Luminescence and Temperature Sensing Performance of TiO2-ZnO:Yb3+/Ho3+ Phosphors. |
| المؤلفون: |
Nonaka, Toshihiro, Higa, Aoi, Sanada, Hibiki, Yamamoto, Shin-Ichi |
| المصدر: |
Brazilian Journal of Physics; Aug2024, Vol. 54 Issue 4, p1-8, 8p |
| مستخلص: |
In this study, TiO2-ZnO:Yb3+/Ho3+ upconversion phosphors are synthesized by a solid-phase reaction method and their Yb3+ concentration dependence is analyzed. The crystal structure of the phosphors is analyzed by X-ray diffractometry, where each sample is composed of Zn2TiO4 and Yb2Ti2O7. Photoluminescence characteristics are analyzed and peaks are observed at wavelengths of 539 nm (5F4, 5S2 → 5I8) and 669 nm (5F5 → 5I8). High intensity luminescence is obtained for samples with Yb = 7–8 mol%. Analysis of temperature characteristics shows absolute and relative sensitivities of 0.0052 K−1 and 0.40% K−1, respectively. The samples are found to be chemically stable, indicating that TiO2-ZnO:Yb3+/Ho3+ could be used as a temperature sensor. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |