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New Y2LuCaAl2SiO12:Ln (Ln = Ce3+, Eu3+, and Tb3+) phosphors for white LED applications

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Abstract

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 with combining macron]d 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.

Graphical abstract: New Y2LuCaAl2SiO12:Ln (Ln = Ce3+, Eu3+, and Tb3+) phosphors for white LED applications

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Publication details

The article was received on 05 Feb 2018, accepted on 30 Mar 2018 and first published on 02 Apr 2018


Article type: Research Article
DOI: 10.1039/C8QI00111A
Citation: Inorg. Chem. Front., 2018, Advance Article
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    New Y2LuCaAl2SiO12:Ln (Ln = Ce3+, Eu3+, and Tb3+) phosphors for white LED applications

    D. A. Hakeem, J. W. Pi, S. W. Kim and K. Park, Inorg. Chem. Front., 2018, Advance Article , DOI: 10.1039/C8QI00111A

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