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

被引：29

作者：

Ishiwada, Naohiro ^{[2
]}

Fujioka, Satoko ^{[3
]}

Ueda, Toshihisa ^{[1
]}

Yokomori, Takeshi ^{[1
]}

机构：

[1] Keio Univ, Dept Mech Engn, Kohoku Ku, Kanagawa 2238522, Japan

[2] Keio Univ, Sch Sci Open & Environm Syst, Kohoku Ku, Kanagawa 2238522, Japan

[3] Keio Univ, Dept Appl Chem, Kohoku Ku, Kanagawa 2238522, Japan

来源：

OPTICS LETTERS | 2011年 / 36卷 / 05期

关键词：

LASER-INDUCED FLUORESCENCE; THERMOGRAPHIC PHOSPHORS; TEMPERATURE-MEASUREMENTS; REMOTE THERMOMETRY; PHOTOLUMINESCENCE; Y2O3-EU;

D O I：

10.1364/OL.36.000760

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this study, the new temperature-dependent phosphor, Y2O3: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. (C) 2011 Optical Society of America

引用

页码：760 / 762

页数：3

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