The samples, Lu2O3:Eu3+ (3at.% Eu) and Lu2O3:Sm3+ (1at.% Sm), were prepared
via polymer complex solution method using polyethlylene-glyocol as the fuel
and as nucleation agent for crystallization process. Knowing that lutetium
oxide has high chemical stability and temperature resistance, in this paper
we investigated possibility for its application in high-temperature phosphor
thermometry. It is a non-contact technique that uses the thermal dependence
of phosphor fluorescence to measure temperature remotely. The structural and
morphological properties were performed through X-ray powder diffraction
(XRPD) and transmission electron microscopy (TEM) investigations. The
obtained results confirmed that this synthesis yields desired crystalline
structure with particle size in the range from 30 to 50 nm. Photoluminescence
emission measurements were recorded in the temperature range from room up to
873 K. The accomplished results demonstrate the performance of Eu3+ and Sm3+
doped Lu2O3 as high temperature thermographic phosphors of very good
sensitivity.
Thermographic properties of Eu3+ and Sm3+ doped Lu2O3 nanophosphor
