Luminescent centers of EU2+ in BaMgAl10O17 phosphor

被引：28
|
作者：
Liu, YL [1 ]
Shi, CS
机构：
[1] Jinan Univ, Dept Chem, Guangzhou 510632, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Appl Chem, Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2001年 / 36卷 / 1-2期
关键词：
oxides; luminescence;
D O I：
10.1016/S0025-5408(01)00507-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Two kinds of luminescent centers an observed in BaMgAl10O17:Eu2+ phosphor. Influence of flux on luminescence of Eu2+ in the phosphor is discussed in detail. There exists Eu2+ (F-) center (a luminescent center with 277 nm excitation band and 386 nm emission band) due to the substitution of F- ions for O2- ions, Effective energy transfer from Eu2+ (F-) to Eu2+ (O2-) (a luminescent center with 334 nm excitation band and 450 nm emission band) is observed. The quenching concentration of Eu2+ in BaMgAl10O17 is raised by 0.20 mole per mole host due to forming of new luminescent center Eu2+ (F-). (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：109 / 115
页数：7
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