ZHANG Yu-hong, LIU Dan, WANG Ting-ting etc. Upconversion Luminescence and Optical Temperature Sensing Properties for Lu<sub>2</sub>O<sub>3</sub>(Y<sub>2</sub>O<sub>3</sub>): Yb<sup>3+</sup>/Er<sup>3+</sup>/Gd<sup>3+</sup> Phosphors[J]. Chinese Journal of Luminescence, 2019,40(12): 1478-1485
ZHANG Yu-hong, LIU Dan, WANG Ting-ting etc. Upconversion Luminescence and Optical Temperature Sensing Properties for Lu<sub>2</sub>O<sub>3</sub>(Y<sub>2</sub>O<sub>3</sub>): Yb<sup>3+</sup>/Er<sup>3+</sup>/Gd<sup>3+</sup> Phosphors[J]. Chinese Journal of Luminescence, 2019,40(12): 1478-1485 DOI: 10.3788/fgxb20194012.1478.
Upconversion Luminescence and Optical Temperature Sensing Properties for Lu2O3(Y2O3): Yb3+/Er3+/Gd3+ Phosphors
phosphors were synthesized using a sol-gel method.Upconversion(UC) luminescence and temperature-sensing properties were investigated. Under 980 nm excitation
bright green
red
and weak ultraviolet emissions were observed. The optimal Gd
3+
doping concentrations in Lu
2
O
3
(Y
2
O
3
) was 10%. The energy transfer processes from Er
3+
to Gd
3+
ions has been investigated and discussed. By utilizing the fluorescence intensity ratio (FIR) technique
the temperature sensing behaviors of the optimal sample are investigated based on the thermally coupled levels of
2
H
11/2
and
4
S
3/
2
of Er
3+
ions from 313 K to 573 K. The maximal sensitivity was gained to be 0.005 91 K
-1
for Y
2
O
3
:1%Er
3+
/1%Yb
3+
/10%Gd
3+
.
关键词
Keywords
references
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