Enhanced luminescence via energy transfer from Ag+ to RE ions (Dy3+, Sm3+, Tb3+) in glasses

被引：91

作者：

Li, JingJing ^{[1
]}

Wei, RongFei ^{[1
]}

Liu, XueYun ^{[1
]}

Guo, Hai ^{[1
]}

机构：

[1] Zhejiang Normal Univ, Dept Phys, Jinhua 321004, Zhejiang, Peoples R China

来源：

OPTICS EXPRESS | 2012年 / 20卷 / 09期

基金：

中国国家自然科学基金;

关键词：

GREEN TUNABLE LUMINESCENCE; SILVER NANOPARTICLES; SILICATE-GLASSES; UP-CONVERSION; WHITE; PHOTOLUMINESCENCE; FLUORESCENCE; PARTICLES;

D O I：

10.1364/OE.20.010122

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Oxyfluoride glasses containing Ag species and rare earth (RE) ions (Dy3+, Sm3+, Tb3+) were prepared by melt-quenching technique. The type of luminescent species of novel excitation band (230-300 nm peaked at 255 nm) and emission band (300-600 nm peaked at 350 nm) were investigated by absorption, excitation, emission spectra, as well as decay lifetime measurements and can be ascribed to isolated Ag+ ions. Owing to energy transfer from Ag+ to RE ions, significant enhancements of RE ions emission (76 times for Sm3+, 41 times for Dy3+) were observed for non-resonant UV excitation (255 nm). Our research may extend the understanding of interactions between RE ions and Ag species. (C) 2012 Optical Society of America

引用

页码：10122 / 10127

页数：6

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