Temperature-dependent fluorescence decay lifetimes of the phosphor Y3(Al0.5Ga0.5)5O12:Ce 1%

被引：23

作者：

Allison, S. W. ^{[1
]}

Buczyna, J. R. ^{[2
]}

Hansel, R. A. ^{[3
]}

Walker, D. G. ^{[3
]}

Gillies, G. T. ^{[2
,4
]}

机构：

[1] Oak Ridge Natl Lab, Measurement Sci & Syst Div, Oak Ridge, TN 37831 USA

[2] Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA

[3] Vanderbilt Univ, Dept Mech Engn, Nashville, TN 37235 USA

[4] Univ Virginia, Dept Mech & Aerosp Engn, Charlottesville, VA 22904 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 105卷 / 03期

关键词：

cerium; combustion; fluorescence; nanostructured materials; phosphors; radiation quenching; thermo-optical effects; THERMOGRAPHIC PHOSPHORS; THERMOMETRY; COMBUSTION;

D O I：

10.1063/1.3077262

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The decay time of the phosphor yttrium aluminum garnet doped with cerium (YAG:Ce) is temperature dependent. Selective incorporation of gallium into the YAG:Ce matrix permits tuning the temperature at which quenching begins. Also, the size of the phosphor particle and processing method affect this characteristic. We describe one such situation in which the quenching of the combustion synthesized nanophosphor Y-3(Al0.5Ga0.5)(5)O-12:Ce 1% was observed from ambient to 125 degrees C. By signal averaging of laser excited fluorescence, temperature uncertainties ranged from 0.05 to 0.15 degrees C. The single shot temperature uncertainty at 115 degrees C was +/- 3 degrees C, indicating the feasibility for transient thermometry with response rate exceeding 1 MHz.

引用

页数：3

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