Temperature-controlled down-conversion luminescence behavior of Eu3+-doped transparent MF2(M = Ba, Ca, Sr) glass ceramics.
Eu3+-doped transparent glass ceramics containing MF2(M = Ba, Ca, Sr) nanocrystals were fabricated using a melt-quenching method, and the resulting structures were studied using X-ray diffraction. Levels5D1and5D0of Eu3+ions were verified as thermally coupled levels using the fluorescence intensity ratio method. The fluorescence intensity ratios, optical temperature sensitivity and thermal quenching ratios of the transparent glass ceramics were studied as a function of temperature. With an increase in temperature, the relative sensitivity (SR) decreased sharply at first, then slowly increased, before finally decreasing. The minimum SRvalues of GCBaF2(GCB), GCCaF2(GCC) and GCSrF2(GCS) were 2.8 × 10-4, 0.8 × 10-4and 1.9 × 10-4K-1at 360, 269 and 319 K, respectively. Glass ceramics with an intense emission intensity can be used to convert the measured spectrum into temperature and may have an important role in temperature detectors.
College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing, People's Republic of China.
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Zhou
College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing, People's Republic of China.
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College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing, People's Republic of China.
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Bu
College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing, People's Republic of China.
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Meng
College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing, People's Republic of China.|Key Laboratory of Radio Frequency and Micro-Nano Electronics of Jiangsu Province, Nanjing, People's Republic of China.|College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing, People's Republic of China.
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Yan
College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing, People's Republic of China.|Key Laboratory of Radio Frequency and Micro-Nano Electronics of Jiangsu Province, Nanjing, People's Republic of China.
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Wang
D001464:Barium / Q000737:chemistry*; D002118:Calcium / Q000737:chemistry*; D002516:Ceramics / Q000737:chemistry*; D005063:Europium / Q000737:chemistry*; D005898:Glass / Q000737:chemistry; D049449:Luminescence; D013324:Strontium / Q000737:chemistry*; D013696:Temperature
D001464:Barium; D005063:Europium; D002118:Calcium; D013324:Strontium
BaF2; CaF2; Eu3+; SrF2; glass ceramic; temperature sensing