Recent progress in sensor materials for fluorescence thermometry

Author

Katsumata, Toru

Author_Institution

Sensor Photonics Res. Center, Toyo Univ., Kawagoe

fYear

2008

Firstpage

2748

Lastpage

2751

Abstract

Various materials, such as spinel (MgAl₂O₄), garnet (Y₃Al₅O₁₂), sapphire (Al₂O₃), YAlO₃ and long afterglow phosphors (CaAl₂O₄, SrAl₂O₄) crystals and composites of these materials are developed for a highly sensitive thermo-sensor in fluorescence thermometer application. Temperature dependences of photoluminescence (PL) lifetime and/or PL intensity from sensor materials are evaluated using crystals grown by floating zone technique. PL lifetime from sensor materials becomes faster with temperature. PL intensity from sensor materials decreases linearly with temperature. From the temperature dependences of PL, temperature can be measured using these materials as the fluorescence thermo-sensors.

Keywords

fluorescence; photoluminescence; temperature measurement; temperature sensors; thermometers; zone melting; afterglow phosphors crystals; floating zone technique; fluorescence thermometry; garnet; photoluminescence; sapphire; sensor materials; spinel; thermo-sensor; Composite materials; Crystalline materials; Crystals; Fluorescence; Garnets; Phosphors; Temperature dependence; Temperature measurement; Temperature sensors; Thermal sensors; Fluorescence thermometer; Luminescence; Phosphor; Sensor materials;

fLanguage

English

Publisher

ieee

Conference_Titel

Control, Automation and Systems, 2008. ICCAS 2008. International Conference on

Conference_Location

Seoul

Print_ISBN

978-89-950038-9-3

Electronic_ISBN

978-89-93215-01-4

Type

conf

DOI

10.1109/ICCAS.2008.4694225

Filename

4694225