Fluorescent Ag nanoclusters in glass induced by an infrared femtosecond laser

被引：54

作者：

Dai, Ye

Hu, Xiao

Wang, Chen

Chen, Danping

Jiang, Xiongwei

Zhu, Congshan

Yu, Bingkun

Qiu, Jianrong ^{[1
]}

机构：

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

[2] Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China

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

来源：

CHEMICAL PHYSICS LETTERS | 2007年 / 439卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.cplett.2007.03.043

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：

We report a method for the selective introduction of fluorescent Ag nanoclusters in glass. Extinction and photoluminescence spectra show that a fraction of the Ag atoms are generated through femtosecond laser induced multiphoton reduction and then aggregate to form Ag nanoclusters after heat treatment. Red luminescence from the irradiated region is observed under blue or green laser excitation. The fluorescence can be attributed to interband transitions within Ag nanoclusters. This method provides a novel route to fabricate fluorescent nanomaterials in 3D transparent materials. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：81 / 84

页数：4

共 16 条

[1] TRAPPING-SITE EFFECTS IN RESONANCE RAMAN-SPECTRA OF AG2 MOLECULES ISOLATED IN RARE-GAS MATRICES [J].