pp. 1739-1747
S&M2568 Research Paper https://doi.org/10.18494/SAM.2021.3364 Published: May 21, 2021 Annealing Temperature Dependence of Upconversion Phosphor of TiO2-ZnO Doped with Yb3+ and Tm3+ [PDF] Toshihiro Nonaka, Takahiko Ban, and Shin-Ichi Yamamoto (Received March 15, 2021; Accepted April 30, 2021) Keywords: upconversion, TiO2-ZnO, Yb3+, Tm3+, metal-organic decomposition
In this paper, we report on the annealing temperature dependence of the upconversion (UC) phosphor of TiO2-ZnO doped with Yb3+ and Tm3+. We prepared samples using metal-organic decomposition (MOD) solutions and Tm2O3 powder, which were analyzed in terms of their photoluminescence (PL) spectra and crystal structures. The PL spectra showed a blue UC phosphor band at a wavelength of 476 nm. The emission intensity was greatest after annealing at 850 °C. By analyzing the crystal structures using an X-ray diffractometer (XRD), it was found that there was a large amount of RE2Ti2O7 in the samples annealed at 900 ℃ and above.
Corresponding author: Toshihiro NonakaThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Toshihiro Nonaka, Takahiko Ban, and Shin-Ichi Yamamoto, Annealing Temperature Dependence of Upconversion Phosphor of TiO2-ZnO Doped with Yb3+ and Tm3+, Sens. Mater., Vol. 33, No. 5, 2021, p. 1739-1747. |