TY - GEN
T1 - Phosphor thermometry by using rare earth-doped yttrium oxides
AU - Ishiwada, Naohiro
AU - Fujika, Satoko
AU - Ueda, Toshihisa
AU - Yokomori, Takeshi
PY - 2011/12/1
Y1 - 2011/12/1
N2 - The development of new temperature-dependent phosphor particles for high temperature thermometry is presented. To develop the phosphor material that can be applied to the intensity ratio method, the photoluminescence of Y 2O 3:Tb,Tm was investigated with elevating temperature. As a result, Y 2O 3:Tb,Tm phosphor shows that the peak intensity at 456 nm is still strong at more than 1100 K whereas the other peak intensities decrease due to the thermal quenching. Thus, the intensity ratio I 543nm/I 456nm has a high gradient and linearity over a wide temperature range, and it is confirmed that Y 2O 3:Tb,Tm provides a higher resolution in temperature measurement than Y 2O 3:Tb and Y 2O 3:Tm. Also, since this phosphor changes its emission color from green to blue with increasing temperature, it is possible to measure temperature not only by analyzing the intensity ratio but also by observing the color change in appearance. It can, therefore, be expected to use as a Visual Thermo-Sensor (VTS).
AB - The development of new temperature-dependent phosphor particles for high temperature thermometry is presented. To develop the phosphor material that can be applied to the intensity ratio method, the photoluminescence of Y 2O 3:Tb,Tm was investigated with elevating temperature. As a result, Y 2O 3:Tb,Tm phosphor shows that the peak intensity at 456 nm is still strong at more than 1100 K whereas the other peak intensities decrease due to the thermal quenching. Thus, the intensity ratio I 543nm/I 456nm has a high gradient and linearity over a wide temperature range, and it is confirmed that Y 2O 3:Tb,Tm provides a higher resolution in temperature measurement than Y 2O 3:Tb and Y 2O 3:Tm. Also, since this phosphor changes its emission color from green to blue with increasing temperature, it is possible to measure temperature not only by analyzing the intensity ratio but also by observing the color change in appearance. It can, therefore, be expected to use as a Visual Thermo-Sensor (VTS).
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M3 - Conference contribution
AN - SCOPUS:84860913268
SN - 9780791838921
T3 - ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011
BT - ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011
T2 - ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011
Y2 - 13 March 2011 through 17 March 2011
ER -