Enhancement of photoluminescence properties of CaAl2Si2O8:Eu2+ by SiO2 addition

被引：7

作者：

Kim, B. S. ^{[1
]}

Song, Y. H. ^{[1
]}

Jo, D. S. ^{[1
]}

Abe, T. ^{[2
]}

Senthil, K. ^{[1
]}

Masaki, T. ^{[1
]}

Toda, K. ^{[2
]}

Yoon, D. H. ^{[1
,3
]}

机构：

[1] Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, Suwon 440746, South Korea

[2] Niigata Univ, Fac Engn, Dept Chem & Chem Engn, Niigata 9502181, Japan

[3] Sungkyunkwan Univ, SKKU Adv Inst Nanotechnol SAINT, Suwon 440746, South Korea

来源：

MATERIALS RESEARCH BULLETIN | 2012年 / 47卷 / 10期

关键词：

Optical materials; X-ray diffraction; Luminescence; Optical properties; LIGHT-EMITTING-DIODES; LUMINESCENT PROPERTIES; OPTICAL-PROPERTIES; PHOSPHOR; GREEN; EMISSION;

D O I：

10.1016/j.materresbull.2012.04.109

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

SiO2 added phosphors, CaAl2Si2O8:Eu2+ + xSiO(2) (x = 0, 1, 2, 3, 4, 5, 6 and 13 mol) were synthesized by a novel liquid phase precursor (LPP) method. The photoluminescence properties of phosphor added by 5 mol of SiO2 showed 110% enhancement in the emission intensity compared to the CaAl2Si2O8:Eu2+ phosphor. A broad emission and excitation wavelength was observed approximately from 400 nm to 600 nm centered at 430 nm and from 280 nm to 400 nm centered at 365 nm, respectively. Photoluminescence intensity of the phosphors increased continuously by SiO2 addition up to x = 5 mol and then it decreased with further addition of SiO2. The observed photoluminescence properties of the phosphors were discussed related to their crystalline structure and morphology. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：3015 / 3019

页数：5

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