Self-calibrated optical thermometer based on luminescence from SrLu2O4:Bi3+,Eu3+ phosphors

Bi3+,Eu3+ co-doped SrLu2O4 phosphors were synthesized by a solid state reaction method. Their structural, luminescent and temperature sensing properties have been systematically investigated. The color-tunable emissions from violet to red were detected with the increase of Eu3+ concentration. Relyin...

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Bibliographic Details
Published inRSC advances Vol. 8; no. 62; pp. 35422 - 35428
Main Authors Chen, Xueyan, Zheng, Zhigang, Teng, Liming, Wei, Rongfei, Hu, Fangfang, Guo, Hai
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 16.10.2018
The Royal Society of Chemistry
Subjects
bismuth
Chemical synthesis
Chemistry
Detection
emissions
Energy transfer
Europium
Fluorescence
Phosphors
temperature
thermometers
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Summary:Bi3+,Eu3+ co-doped SrLu2O4 phosphors were synthesized by a solid state reaction method. Their structural, luminescent and temperature sensing properties have been systematically investigated. The color-tunable emissions from violet to red were detected with the increase of Eu3+ concentration. Relying on energy transfer process from Bi3+ to Eu3+ and thermal quenching behaviour, the fluorescence intensity ratio (FIR) presents excellent temperature sensing performance. The maximum absolute and relative sensitivities reach 1.10% K−1 and 0.87% K−1, respectively. These meaningful results indicate that SrLu2O4:Bi3+,Eu3+ is a promising material for optical temperature sensing.
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ISSN:2046-2069
2046-2069
DOI:10.1039/c8ra06358c