Preparation and luminescent properties of a novel red emitting phosphor of Ca1-2xMxIn2O4:xEu3+ (M = Li, Na, K) for white LED solid-state lighting

被引：26

作者：

Yan, Xiaosong ^{[1
]}

Li, Wanwan ^{[1
]}

Sun, Kang ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 508卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Phosphor; Luminescence; Solid-state reaction; COMBUSTION SYNTHESIS; DIODES; EU3+; EMISSION;

D O I：

10.1016/j.jallcom.2010.08.096

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The phosphors of Ca1-2xMxIn2O4:xEu(3+) (M = Li, Na, K) were prepared by solid-state reaction method, which showed the characteristic emissions of Eu3+ (D-5(j) -> F-7(j'') j=0, 1, 2, 3 j ' = 0, 1, 2, 3 transitions). The emission located at 618 nm due to the D-5(0)-> F-7(2) transition was dominantly observed in the photoluminescence (PL) spectrum, leading to a red emission of the phosphors. The phosphors can be excited efficiently by both 394 nm and 465 nm light. Li+, Na+, K+ ions were doped as charge compensators to enhance red emission of the phosphors, and different effects of the alkali metal ions on the luminescence of the phosphors were investigated. (C) 2010 Elsevier B.V. All rights reserved.

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页码：475 / 479

页数：5

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