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Composition engineering of single crystalline films based on the multicomponent garnet compounds
Affiliation:1. Institute of Physics of Kazimierz Wielki University in Bydgoszcz, 85-090 Bydgoszcz, Poland;2. Electronics Department of Ivan Franko National University in Lviv, 79005 Lviv, Ukraine;3. Institute of Nuclear Physics, Polish Academy of Science, 31-342 Krakow, Poland;4. Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 61001 Kharkiv, Ukraine;5. Institute for Single Crystals, National Academy of Sciences of Ukraine, 61178 Kharkiv, Ukraine;1. IFN – CNR CSMFO Lab. & FBK CMM, via alla Cascata 56/C Povo, 38123, Trento, Italy;2. Politecnico di Milano, Dipartimento di Fisica and IFN-CNR, Piazza Leonardo da Vinci 32, 20133, Milano, Italy;3. Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, Via Giovanni Pascoli, 70/3, 20133, Milan, Italy;4. Dipartimento di Fisica, Università di Trento, via Sommarive 14, Povo, 38123, Trento, Italy;5. School of Physics, University of Hyderabad, Hyderabad, 500046, India;6. CSIRO Manufacturing Flagship, Ian Wark Laboratory, 3168, Clayton, Australia;7. Institute of Low Temperature and Structure Research, PAS, 2 Okolna St., 50-422, Wroclaw, Poland;8. Ruđer Bošković Institute, Division of Materials Physics, Laboratory for Molecular Physics, Bijenička c. 54, Zagreb, Davor, Croatia;9. Center of Excellence for Advanced Materials and Sensing Devices, Research Unit New Functional Materials, Bijenička c. 54, Zagreb, Croatia;10. Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, CEP 14040-901, Ribeirão Preto, SP, Brazil;11. College of Engineering, Swansea University, Singleton Park, Swansea, UK;12. Centro di Studi e Ricerche Enrico Fermi, P.zza Viminale 1, 00184, Roma, Italy;13. IFAC – CNR, MiPLab, Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy;14. IFN – CNR and Politecnico di Milano, Dipartimento di Fisica, Piazza Leonardo da Vinci 32, 20133, Milano, Italy;15. Dipartimento di Ingegneria Industriale, Università di Padova, via Marzolo 9, 35122, Padova, Italy;1. Department of Physics, West University of Timisoara, V. Parvan 4, Timisoara, 300223, Romania;2. Academy of Romanian Scientists, Independentei Street 54, Bucharest, 050094, Romania;3. Ural Federal University, 620002, Yekaterinburg, Russia;4. Shumen University “Konstantin Preslavsky”, 115 Universitetska Street, 9712, Shumen, Bulgaria;1. Department of Chemistry and Brockhouse Institute of Materials Research, McMaster University, Hamilton, ON, Canada L8S 4M1;2. Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA;3. Canadian Neutron Beam Centre, National Research Council, Chalk River Laboratories, Chalk River, ON, Canada K0J 1J0
Abstract:The paper demonstrates our last achievement in development of the novel scintillating screens based on single crystalline films (SCF) of Ce doped multicomponent garnets using the Liquid Phase Epitaxy (LPE) method. We report in this work the optimized content and excellent scintillation properties of SCF of Lu3-xGdxAl5-yGayO12, Lu3-xTbxAl5-yGayO12 and TbxGdxAl5-yGayO12 garnet compounds grown by the LPE method from PbOsingle bondB2O3 based melt-solution onto Gd3Al2.5Ga2.5O12 and YAG substrates.We also show that the Tb1.5Gd1.5Al2.5Ga2.5O12:Ce SCF possess the highest light yield (LY) in comparison with all ever grown garnet SCF scintillators. Namely, the LY of these SCF exceeds by 3.8 and 1.85 times the LY values of the best samples of YAG:Ce and LuAG:Ce SCF scintillators, respectively. The SCF samples of the mentioned compounds show low thermoluminescence in the above room temperature range and relatively fast scintillation decay time t1/e in the 180–200 ns range.
Keywords:Single crystalline films  Liquid phase epitaxy  Multicomponent garnets  Ce dopant  Luminescence  Scintillators
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