Rare earth-doped nanocrystalline MgF2: Synthesis,luminescence and thermoluminescence |
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| Affiliation: | 1. Department of Materials Science and Engineering, and the Center for Optical Materials Science and Engineering Technologies (COMSET), Clemson University, Clemson, SC, USA;2. Physics Department, Oklahoma State University, Stillwater, OK, USA;1. Department of Physics, Nagpur University, Nagpur 440033, India;2. Department of Physics, K.D.K. College of Engineering, Nagpur, India;3. Radiological Physics and Advisory Division, Bhabha Atomic Research Centre (BARC), Mumbai 400085, India;1. Scottish Universities Environmental Research Centre, Glasgow, United Kingdom;2. Royal Society Newton International Fellow, United Kingdom;3. Boulby Underground Laboratory, Saltburn-by-the-Sea, United Kingdom;1. Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, PR China;2. University of Science and Technology of China, Hefei, 230026, PR China;1. Centre for Theoretical Chemistry and Physics, School of Natural and Computational Sciences, Massey University, Albany, Auckland 0632, New Zealand;2. Institute of Laser Engineering, Osaka University, 2–6 Yamadaoka, Suita, Osaka 565–0871, Japan;3. Fukuda Crystal Laboratory co., Ltd, 6-6-3 Minami-Yoshinari, Aoba-ku, Sendai, Miyagi 989-3204, Japan;1. Institute of Experimental Physics, University of Gdansk, Wita Stwosza 57, 80-952 Gdansk, Poland;2. Department Physics and Astronomy, University of Canterbury, PB 4800, Christchurch 8140, New Zealand |
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| Abstract: | The radioluminescence (RL) and thermoluminescence (TL) activation of MgF2 through the incorporation of rare earths is investigated in this work. These materials were obtained by ligand-free solution precipitation and calcination at 500 °C in air, and Ce, Eu and Tb were incorporated at the 1 mol% level. RL results of doped and undoped materials seem to indicate that the incorporation of rare earths creates effective luminescence centers, which is accompanied by an increase in the TL signal intensity in comparison with the undoped material. In particular, RL emission of MgF2:Ce is reported to be centered at 325 nm. The traps associated with the TL signal were found to be unstable under exposure to room light, suggesting potential for applications involving optically stimulated luminescence. |
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| Keywords: | Rare earth Radioluminescence Thermoluminescence Thermosensor |
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