首页|Temperature sensing performance of ScVO4: Eu3+ phosphors by employing ground state thermal coupling approach
Temperature sensing performance of ScVO4: Eu3+ phosphors by employing ground state thermal coupling approach
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NSTL
Elsevier
? 2022 Elsevier B.V.Lanthanides doped vanadate luminescence materials have gained a lot of attention for their use in non-contact optical thermometry, because of the advantages of non-intrusive and real-time temperature detection. The approach of fluorescence intensity ratio (FIR) of two thermally coupled excited states is the most promising approach but their performance in a lower temperature range is limited due to thermal decoupling among the two emitting levels with a wide energy gap. Thus, in this work, the temperature sensing ability of ScVO4:2% Eu3+ phosphor synthesized successfully through a high-temperature solid-state reaction has been explored by employing the ground state thermal coupling approach. Various experimental and theoretical approaches were used to check the structure and compositional stability of the synthesized ScVO4:2%Eu3+ phosphors host lattice. The temperature-dependent emission intensity of 5D0→7F4 has been measured under 616.3 nm excitation corresponding to 5D0→7F2 absorption, which shows the remarkable increasing behavior with rising of temperature ranging from 113 K to 323 K. The highest value of the relative sensitivity reached 7.19% K?1 at 113 K which is higher than previously reported materials. The obtained results reveal that ScVO4:2% Eu3+ phosphor is a promising candidate for non-contact optical thermometry.
Ground state thermal couplingNon-contact optical thermometryRelative sensitivityScVO4:2% Eu3+
Abbas M.T.、Mao J.、Khan S.A.、Khan N.Z.、Muhammad N.、Mehmood I.
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Key Laboratory of Strongly Coupled Quantum Matter Physics Chinese Academy of Sciences School of Physical Sciences University of Science and Technology of China
Ministry of General Education Anhui Xinhua University
Hoffmann Institute of Advanced Materials Shenzhen Polytechnic
CAS Key Laboratory of Materials for Energy Conversion School of Chemistry and Materials Science University of Science and Technology of China
Hefei National Laboratory for Physical Sciences at Microscale and Department of Physics University of Science and Technology of China
Department of Physics Faculty of Science University of Haripur
NSTL
Elsevier
