期刊
INORGANIC CHEMISTRY FRONTIERS
卷 5, 期 6, 页码 1336-1345出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8qi00111a
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资金
- Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Korea government Ministry of Trade, industry Energy [20164030201340]
The purpose of this study was to develop new garnet phosphors for white LED applications. Numerous compositions were designed to explore new garnet structure phosphors. Among the candidates, Y2LuCaGaAl2SiO12 was selected as a host material, and Y2-xLuCaGaAl2SiO12:xLn (0 <= x <= 0.12; Ln = Ce3+, Eu3+, and Tb3+) phosphors were prepared by using the solid-state reaction method. The Rietveld refinement results showed that Y2-xLuCaGaAl2SiO12:xLn phosphors had a garnet type cubic structure with the Ia (3) over bard space group. The prepared phosphors emitted efficient green, red, and green light by doping Ce3+, Eu3+, and Tb3+, respectively, in Y2LuCaGaAl2SiO12, and showed good luminescence efficiency and high emission color purity. These results demonstrate that the Y2-xLuCaGaAl2SiO12:xLn phosphors can be useful for white light-emitting diode (LED) and solid-state lighting system applications.
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