Annealing Temperature Dependence of Upconversion Phosphor of TiO2-ZnO Doped with Yb3+ and Tm3

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 cr...

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Bibliographic Details
Published in:Sensors and materials 2021-05, Vol.33 (5), p.1739
Main Authors: Nonaka, Toshihiro, Ban, Takahiko, Yamamoto, Shin-Ichi
Format: Article
Language:English
Subjects:
Annealing
Crystal structure
Crystals
Emission analysis
Phosphors
Photoluminescence
Temperature dependence
Thulium
Titanium dioxide
Upconversion
Ytterbium
Zinc oxide
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Summary: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.
ISSN:0914-4935
2435-0869
DOI:10.18494/SAM.2021.3364