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

Naohiro Ishiwada, Satoko Fujioka, Toshihisa Ueda, Takeshi Yokomori

Research output: Contribution to journalArticle

17 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 languageEnglish
Pages (from-to)760-762
Number of pages3
JournalOptics Letters
Volume36
Issue number5
DOIs
Publication statusPublished - 2011 Mar 1

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phosphors
temperature measurement
temperature
quenching
photoluminescence
color
sensors

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Co-doped Y2O3 : Tb3+/Tm3+ multicolor emitting phosphors for thermometry. / Ishiwada, Naohiro; Fujioka, Satoko; Ueda, Toshihisa; Yokomori, Takeshi.

In: Optics Letters, Vol. 36, No. 5, 01.03.2011, p. 760-762.

Research output: Contribution to journalArticle

Ishiwada, Naohiro ; Fujioka, Satoko ; Ueda, Toshihisa ; Yokomori, Takeshi. / Co-doped Y2O3 : Tb3+/Tm3+ multicolor emitting phosphors for thermometry. In: Optics Letters. 2011 ; Vol. 36, No. 5. pp. 760-762.
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