Enhancement of photoluminescence intensity and structural change by doping of P5+ ion for Ca2-x/2(Si1-xPx)O4:Eu2+ green phosphor

被引：11

作者：

Furuya, Shohei ^{[1
]}

Nakano, Hiromi ^{[1
]}

Yokoyama, Nobuyuki ^{[1
]}

Banno, Hiroki ^{[2
,3
]}

Fukuda, Koichiro ^{[2
]}

机构：

[1] Toyohashi Univ Technol, Dept Environm & Life Sci, Toyohashi, Aichi 4418580, Japan

[2] Nagoya Inst Technol, Dept Mat Sci & Engn, Nagoya, Aichi 4668555, Japan

[3] Japan Soc Promot Sci, Tokyo, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 658卷

基金：

日本学术振兴会;

关键词：

Oxide materials; Solid state reactions; Optical properties; Crystal structure; X-ray diffraction; DOPED DICALCIUM SILICATES; POWDER-DIFFRACTION; EMITTING PHOSPHOR; LUMINESCENCE;

D O I：

10.1016/j.jallcom.2015.10.172

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 study of P-doped Ca2SiO4 (C2S) structure has demonstrated that the incorporation of P effectively stabilizes the high-temperature phases. In this work, we synthesize a series of (Ca2-x/2-yEuy square(x/2)) (Si1-xPx)O-4 (0 <= x <= 0.20, 0.02 <= y <= 0.05) green-light emitting phosphors and discuss the influence of P concentration on the luminescence intensity and structural change of the host material. The phosphor is synthesized by a solid-state reaction and heated at 498 K for 6 h, and then at 1273 K for 8 h in air. Doping of Eu2+ is achieved by annealing the Eu2O3-containing materials at 1473 K for 3 h under a 90% N-2-10% H-2 reductive atmosphere. A phosphor with x = 0.04 and y = 0.03 shows the highest PL intensity, which is obviously higher than that of the P-free phosphor (x = 0) due to the structural change of the host material. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：147 / 151

页数：5

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