Microstructure,luminescence, and dielectric properties of microwave-sintered Ce:LuAG nano-ceramics |
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| Affiliation: | 1. Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea;2. Department of Mechanical, Robotics and Energy Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea;3. Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea;4. Department of Chemical Engineering, Hanyang University, Seoul 04763, Republic of Korea;5. Department of Chemical Engineering, Khalifa University, Abu Dhabi 127788, United Arab Emirates;6. Nuclear Technology Center, Khalifa University, Abu Dhabi, United Arab Emirates;1. Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea;2. Department of Chemical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates;3. Nuclear Technology Center, Khalifa University, Abu Dhabi, United Arab Emirates;4. Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seong dong-gu, Seoul, 04763, Republic of Korea;5. School of Chemical Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju, 61186, Republic of Korea;6. Cambridge Graphene Centre, University of Cambridge, 9 JJ Thomson Avenue, Cambridge, CB3 0FA, United Kingdom;7. Electrochemical Energy Laboratory, Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, 603203, India |
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| Abstract: | Herein, phase pure and highly crystalline Ce:LuAG nano-ceramics were fabricated using a novel, ultra-fast microwave sintering approach. The influence of microwave sintering on the microstructural, photoluminescence, and dielectric characteristics of Ce:LuAG nano-ceramic powders was examined. Microwave-assisted sintering of Ce:LuAG nano-ceramic powders yielded high crystallinity, low lattice strain, and reduced grain size. The process also improved the sintering kinetics and enhanced the surface diffusion between the grains, resulting in enhanced luminescence and dielectric properties. The Cole-Cole impedance plots showed single semicircular arcs, indicating non-Debye relaxation and a high dielectric constant in the microwave-sintered Ce:LuAG nano-ceramic and highlighting its potential for use in optoelectronics. |
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| Keywords: | Ce:LuAG Ceramics Microwave sintering Luminescence Impedance spectroscopy |
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