Long lasting phosphorescence in oxygen-deficient zinc-boron-germanosilicate glass-ceramics

被引：18

作者：

Lin, Geng ^{[1
,2
]}

Dong, Guoping ^{[4
,5
]}

Tan, Dezhi ^{[3
]}

Liu, Xiaofeng ^{[1
,2
]}

Zhang, Qiang ^{[1
,2
]}

Chen, Danping ^{[1
]}

Qiu, Jianrong ^{[1
,4
,5
]}

Zhao, Quanzhong ^{[1
]}

Xu, Zhizhan ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

[3] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

[4] S China Univ Technol, Inst Opt Commun Mat, Guangzhou 510641, Guangdong, Peoples R China

[5] S China Univ Technol, Minist Educ, Key Lab Specially Funct Mat, Guangzhou 510641, Guangdong, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 504卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Long lasting phosphorescence; Glass-ceramic; Ge-related oxygen-deficient centers; LUMINESCENCE PROPERTIES; DY;

D O I：

10.1016/j.jallcom.2010.05.080

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 lasting phosphorescence has been observed in oxygen-deficient zinc-boron-germanosilicate glass-ceramics after 254 nm ultraviolet lights irradiation at room temperature. Electron spin resonance (ESR) spectrum confirms the presence of two paramagnetic centers. And the ESR signal shows a synchronized decay process with afterglow intensity after removing the excitation light, suggesting the afterglow is associated with the paramagnetic centers which are generated during the irradiation. Based on the approximate t(-1) decay law of the phosphorescence intensity, the long lasting phosphorescence is attributed to thermal assisted tunneling recombination between pairs of distant electrons and Ge-related oxygen-deficient centers. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：177 / 180

页数：4

共 20 条

[1] A TUNNELING MODEL FOR THE DECAY OF LUMINESCENCE IN INORGANIC PHOSPHORS - THE CASE OF ZN2SIO4-MN [J].