Co-doped Y2O3:Tb3+/Tm3+ multicolor emitting phosphors for thermometry

Naohiro Ishiwada; Satoko Fujioka; Toshihisa Ueda; Takeshi Yokomori

doi:10.1364/OL.36.000760

Co-doped Y₂O₃:Tb³⁺/Tm³⁺ multicolor emitting phosphors for thermometry

Naohiro Ishiwada, Satoko Fujioka, Toshihisa Ueda, Takeshi Yokomori

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

In this study, the new temperature-dependent phosphor, Y₂O ₃:Tb³⁺=Tm³⁺, was investigated for high-temperature thermometry. The photoluminescence intensity at 456nm emitted from Tm³⁺ was strong at temperatures higher than 1100K, whereas the peak intensities emitted from Tb³⁺ decreased due to the thermal quenching effect. Thus, the intensity ratio between those emissions showed an appropriate variation for thermometry over a wide temperature range. In addition, the phosphors showed a distinct change of visible emission colors from green to blue with increasing temperature. These findings suggest the applicability of these phosphors in visual thermo-sensors.

Original language	English
Pages (from-to)	760-762
Number of pages	3
Journal	Optics Letters
Volume	36
Issue number	5
DOIs	https://doi.org/10.1364/OL.36.000760
Publication status	Published - 2011 Mar 1

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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abstract = "In this study, the new temperature-dependent phosphor, Y2O 3:Tb3+=Tm3+, was investigated for high-temperature thermometry. The photoluminescence intensity at 456nm emitted from Tm3+ was strong at temperatures higher than 1100K, whereas the peak intensities emitted from Tb3+ decreased due to the thermal quenching effect. Thus, the intensity ratio between those emissions showed an appropriate variation for thermometry over a wide temperature range. In addition, the phosphors showed a distinct change of visible emission colors from green to blue with increasing temperature. These findings suggest the applicability of these phosphors in visual thermo-sensors.",

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AU - Yokomori, Takeshi

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Co-doped Y₂O₃:Tb³⁺/Tm³⁺ multicolor emitting phosphors for thermometry

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