A multi-mode self-referenced optical thermometer based on low-doped YVO4: Eu3+ phosphor

Thermal imaging study of Sm2+ doped SrB4O7 based on time-resolved technology

“…The relative sensitivity is 7.64% K −1 at 500 K while it reaches 9.67% K −1 as the temperature increases to 533 K. This is an excellent sensitivity value for temperature sensing materials, compared with recently reported results (Table 1). 22–27 Furthermore, using the total intensity of the sample rather than a specific wavelength range greatly increases the signal intensity because no signal is likely lost due to wavelength selection. The high sensitivity and excellent signal quality of this method make it promising in thermal sensing applications.…”