Fluorescence thermo-sensor using mixture of various phosphors

Author

Katsumata, T. ; Harako, S. ; Nakayama, C. ; Aizawa, H. ; Komuro, S.

Author_Institution

Toyo Univ., Saitama

fYear

2007

fDate

17-20 Sept. 2007

Firstpage

2414

Lastpage

2417

Abstract

Composite sensor mixed with long afterglow SrAl₂O₄:Eu,Ln phosphors and ruby have been developed for the fluorescence thermometer applications. Temperature can be measured based on the temperature dependence of photoluminescence (PL) intensity from mixed composite sensor. The temperature dependence of PL intensity and intensity ratio of PL from long afterglow phosphor and ruby is evaluated from PL spectra at various temperatures. Intensity ratio of PL peaks from different phosphors in the composite sensor is useful for temperature measurement.

Keywords

europium; fluorescence; optical sensors; phosphors; photoluminescence; spectral methods of temperature measurement; strontium compounds; thermo-optical devices; thermometers; SrAl₂O₄:Eu; composite sensor; fluorescence thermo-sensor; photoluminescence intensity; temperature measurement; thermometer application; Fluorescence; Optoelectronic and photonic sensors; Phosphors; Photoluminescence; Resins; Sensor phenomena and characterization; Temperature dependence; Temperature measurement; Temperature sensors; Thermal sensors; Fluorescence thermometer; intensity ratio; peak intensity; photoluminescence; spinel;

fLanguage

English

Publisher

ieee

Conference_Titel

SICE, 2007 Annual Conference

Conference_Location

Takamatsu

Print_ISBN

978-4-907764-27-2

Electronic_ISBN

978-4-907764-27-2

Type

conf

DOI

10.1109/SICE.2007.4421393

Filename

4421393