Luminescence of Eu2+ and Dy3+ activated R3MgSi2O8-based (R=Ca, sr, ba) phosphors

被引：143

作者：

Lin, YH ^{[1
]}

Tang, ZL ^{[1
]}

Zhang, ZT ^{[1
]}

Nan, CW ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2003年 / 348卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

phosphors; powder metallurgy; X-ray diffraction; luminescence;

D O I：

10.1016/S0925-8388(02)00796-X

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：

Long afterglow R3MgSi2O8:Eu2+, Dy3+ (R=Ca, Sr, Ba) phosphors were prepared at high temperature and weak reductive atmosphere. The excitation and emission spectra of these phosphors showed that all are broadband due to 4f(7)-4f(6)5d transitions of Eu2+, and the main emission peaks at 471.3, 458.2 and 439.1 nm, respectively. The decay curves indicated that all of these phosphors have long afterglow features, and the Sr3MgSi2O8-based phosphor has better afterglow properties than the other phosphors. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：76 / 79

页数：4

共 16 条

[1] EQUILIBRIA AND EU2+ LIMINESCENCE OF SUBSOLIDUS PHASES BOUNDED BY BA3MGSI2O8 SR3MGSI2O8 AND CA3MGSI2O8 [J].