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

被引：88

作者：

Hakeem, D. A. ^{[1
]}

Pi, J. W. ^{[1
]}

Kim, S. W. ^{[2
]}

Park, K. ^{[1
]}

机构：

[1] Sejong Univ, Dept Nanotechnol & Adv Mat Engn, 209 Neungdong Ro, Seoul 05006, South Korea

[2] Korea Inst Ceram Engn & Technol, Elect Convergence Mat Div, Opt & Display Mat Ctr, Jinju Si 52851, Gyeongsangnam D, South Korea

来源：

INORGANIC CHEMISTRY FRONTIERS | 2018年 / 5卷 / 06期

关键词：

LIGHT-EMITTING-DIODES; LUMINESCENCE PROPERTIES; CROSS-RELAXATION; GARNET PHOSPHOR; TEMPERATURE; Y3AL5O12; CRYSTAL; YAGCE;

D O I：

10.1039/c8qi00111a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

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.

引用

页码：1336 / 1345

页数：10

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