Emission analysis of Li6LuY(BO3)3:Tb3+,Dy3+ phosphors |
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| Institution: | 1. Department of Physics, Kohat University of Science and Technology, Kohat 26000, Pakistan;2. Department of Physics, Kyungpook National University, Daegu 702-701, Republic of Korea;1. Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan;2. Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology, 1233 Watanuki, Takasaki, Gunma 370-1292, Japan;3. Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-Cho, Ikoma, Nara 630-0192, Japan;1. Physics Department, Moscow State University, Leninskie Gory 1, 119991 Moscow, Russia;2. Institute of Physics, University of Tartu, Ravila 14 c, 50411 Tartu, Estonia;3. Skobeltsyn Institute of Nuclear Physics, Moscow State University, 119991 Moscow, Russia;4. Institute for Scintillation Materials, NAS of Ukraine, 60 Lenin Ave., 61001 Kharkiv, Ukraine;5. Institute of Light and Matter, CNRS, University Lyon 1, 10 Rue Ada Byron, 69622 Villeurbanne Cedex, France;1. College of Mathematics and Physics, Jinggangshan University, Ji’an 343009, China;2. School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, China;1. Institute of Physics, University of Tartu, 14c Ravila, 50411 Tartu, Estonia;2. A.M. Prokhorov General Physics Institute RAS, 38 Vavilov Str., 119991, Moscow, Russia;3. University of Science and Technology of China, Hefei, 230026, PR China;4. P. N. Lebedev Physical Institute, 53 Leninskiy Prospekt, 119991 Moscow, Russia;1. Taras Shevchenko National University of Kyiv, 64 Volodymyrska st., 01601 Kyiv, Ukraine;2. National University of Life and Environmental Sciences of Ukraine, 5 Geroiv Oborony st., 03041 Kyiv, Ukraine;3. Oleksandr Dovzhenko Hlukhiv National Pedagogical University, 24 Kyjevo-Moskovs''ka Street, 41400 Glukhiv, Ukraine |
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| Abstract: | In this paper, we present the synthesis and luminescence properties of Tb3+ and Dy3+-doped lithium lutetium yttrium borate (Li6LuY(BO3)3) phosphors. We have adopted the well-known solid state reaction method for the synthesis of these phosphors. The emission intensities of the synthesized phosphors were found to reach their maximum, when doped by 1 mol% of Tb3+ and 3 mol% of Dy3+, beyond which emission intensities decrease due to concentration quenching. The homogeneous phase, crystalline structure and uniform morphology of the synthesized phosphors were confirmed by X-ray diffraction analysis (XRD) and Scanning electron microscopy (SEM). The X-ray and UV–VIS-induced luminescence, decay time and CIE chromaticity were investigated for the synthesized phosphors.The X-ray induced integrated light yield was measured to be 82% for Li6LuY(BO3)3:Tb3+ (LLYBO) and 59% for Li6LuY(BO3)3:Dy3+ of that of commercially available X-ray imaging material; Gd2O2S:Tb3+ (Gadox).LLYBO:Tb3+ phosphor displayed five major emission bands that correspond to 5Dj → 7Fj transitions. The 1931 Commission Internationale de l'Eclairage (CIE) chromaticity coordinates were also measured. |
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| Keywords: | Emission Photoluminescence LED X-ray |
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