Title of article :
Temperature dependent luminescence of Dy3+ doped BaYF5 nanoparticles for optical thermometry
Author/Authors :
Cao، نويسنده , , Zhongmin and Zhou، نويسنده , , Shaoshuai and Jiang، نويسنده , , Guicheng and Chen، نويسنده , , Yonghu and Duan، نويسنده , , Changkui and Yin، نويسنده , , Min، نويسنده ,
Issue Information :
ماهنامه با شماره پیاپی سال 2014
Pages :
5
From page :
1067
To page :
1071
Abstract :
Dy3+ doped BaYF5 nanoparticles with tetragonal structure were synthesized by hydrothermal method and solvothermal method. The structural and the luminescent properties of the samples were characterized by X-ray diffraction pattern, TEM and photoluminescence spectra. Emission of Dy3+ originated from 4I15/2 located at 450 nm and 4F9/2 located at 478 nm, 573 nm and 660 nm were observed under excitation of 355 nm laser. Behavior of fluorescence intensity ratio with temperature increasing from room temperature to approximately 800 K was investigated. And the optimum temperature range for thermometry is obtained to be 550–800 K according to its sensitivity-temperature relation, indicating the potential application of BaYF5:Dy3+ as a luminescent temperature sensor.
Keywords :
Optical thermometry , fluorescence intensity ratio , Hydrothermal method , Thermally coupled energy levels
Journal title :
Current Applied Physics
Serial Year :
2014
Journal title :
Current Applied Physics
Record number :
1792182
Link To Document :
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