TY  - JOUR
AU  - Paz-Buclatin, F.
AU  - Rivera-López, F.
AU  - González, O.
AU  - Martín, I.R.
AU  - Martin, L.L.
AU  - Jovanović, D.J.
T1  - GdVO4:Er3+/Yb3+ nanocrystalline powder as fluorescence temperature sensor. Application to monitor the temperature of an electrical component
LA  - eng
PY  - 2019
T2  - Sensors and Actuators, A: Physical
SN  - 0924-4247
VL  - 299
PB  - Elsevier B.V.
AB  - The temperature sensing properties of an Er3+/Yb3+ co-doped GdVO4 nanocrystalline powder were studied. The down-conversion emission spectrum of the sample was observed under excitation at 457 nm. Two methods were used to calibrate the temperature of the sample: one based on the Fluorescence Intensity Ratio (FIR) technique and the other using the fluorescence lifetime of the thermally-coupled energy levels of Er3+. The relative sensitivities for each method were calculated and it was found out that the FIR-based temperature sensor has higher sensitivity (1.17% K−1) than the lifetime-based sensor (0.24% K−1). Furthermore, a temperature uncertainty of 0.37 K was obtained for the FIR-based sensor. The GdVO4 nanoparticles were also used to study the change in temperature of an electrical component when it is operating and not.
DO  - 10.1016/J.SNA.2019.111628
UR  - https://portalciencia.ull.es/documentos/5e39b37c2999523aa926f382
DP  - Dialnet - Portal de la Investigación
ER  -