Luminescent and scintillation properties of Lu3Al5O12:Sc single crystal and single crystalline films |
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| Affiliation: | 1. Institute of Physics, Kazimierz Wielki University in Bydgoszcz, 85-090 Bydgoszcz, Poland;2. Laboratory for Optoelectronic Materials (LOMs), Electronics Department of Ivan Franko National University of Lviv, Gen. Tarnavsky Str. 107, 79070 Lviv, Ukraine;3. Institute for Single Crystals of NAS Ukraine, Lenin Ave. 60, 61001 Kharkiv, Ukraine;4. Institute of Physics AS of Czech Republic, Cukrovarnicka 10, 16253 Prague, Czech Republic;5. CRYTUR Ltd., Palackeho 175, 511 19 Turnov, Czech Republic;6. Department of Materials Science and Engineering, University of Erlangen–Nuremberg, 91058 Erlangen, Germany;1. Department of Physics, New Horizon College of Engineering, Bangalore 560103, India;2. Research and Development Center, Bharathiar University, Coimbatore 641046, India;3. Department of Science, East West Institute of Technology, Bangalore 560091, India;4. Center for Advanced Materials, Tumkur University, Tumkur 572103, India;5. Chattisgarh Swamy Vivekananda Technical University, Bhilai, CG 493441, India;6. Department of Physics, B M S Institute of Technology, Yelahanka, Bangalore 560064, India;7. Department of Physics, Acharya Institute of Technology, Bangalore 560107, India;1. Institute of Physics, Kazimierz Wielki University in Bydgoszcz, 85-064 Bydgoszcz, Poland;2. Electronics Department, Ivan Franko National University of Lviv, 79000 Lviv, Ukraine;3. Institute of Nuclear Physics, Polish AS, 31-342 Krakow, Poland;4. Institute of Physics, Jan Dlugosz University, 42-200 Czestochowa, Poland;5. Institute for Scintillation Materials NAS of Ukraine, 61001 Kharkiv, Ukraine;1. Institute of Physics Academy of Sciences of the Czech Republic, Cukrovarnická 10, 16253 Prague, Czech Republic;2. Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 7, 11519 Prague, Czech Republic;1. Institute of Physics, Kazimierz Wielki University in Bydgoszcz, 85090 Bydgoszcz, Poland;2. Laboratory for Optoelectronic Materials, Department of Electronics, Ivan Franko National University of Lviv, 79017 Lviv, Ukraine;3. Institute for Single Crystals, NAS of Ukraine, 61001 Kharkiv, Ukraine;4. Institute of Physics, AS CR, 16253 Prague, Czech Republic;5. Institute of Nuclear Physics, Polish Academy of Science, 31342 Krakow, Poland;1. Institute of Physics AS CR, Cukrovarnicka 10, Prague 16253, Czech Republic;2. Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehova 7, Praha 1, 11519 Czech Republic;3. Institute of Physics, Kazimierz Wielki University in Bydgoszcz, 85090 Bydgoszcz, Poland;4. Electronics Department, Ivan Franko National University of Lviv, 79017 Lviv, Ukraine |
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| Abstract: | The work is dedicated to growth by the liquid phase epitaxy method and study of the luminescence and scintillation properties of Sc3+ doped single crystalline films (SCF) of Lu3Al5O12 (LuAG) garnet. The scintillation properties of SCF are compared with single crystal (SC) analogues grown by the Horizontal Direct Crystallization and Czochralski methods. We consider the dependence of intensity of the Sc3+ emission in LuAG host on the activator concentration and influence of flux contamination on the light yield (LY) of the Sc3+ luminescence in LuAG:Sc SCF with respect to their SC counterparts and the reference YAP:Ce scintillator. From the NMR investigations of LuAG:Sc SCF we confirm the substitution by Sc3+ ions both the octahedral and dodecahedral positions of LuAG host and formation of the ScAl and ScLu related emission centers, respectively. We also show that the luminescence spectrum in the UV range and decay kinetics of LuAG:Sc SCF can be effectively tuned by changing the scandium content. |
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