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纳米银组装结构的表面增强荧光效应
引用本文:井泉印,周群,赵金金,郑军伟.纳米银组装结构的表面增强荧光效应[J].光谱实验室,2007,24(4):539-541.
作者姓名:井泉印  周群  赵金金  郑军伟
作者单位:苏州大学化学化工学院,江苏省苏州工业园区独墅湖高教区101信箱,215123
基金项目:国家自然科学基金 , 江苏省高校重点基金
摘    要:采用表面自组装技术,在玻片表面构筑银纳米粒子二维组装结构.银纳米粒子组装结构的吸收光谱表明银粒子表面等离子体共振与粒子间电磁偶合密切相关,偶极子表面等离子体共振更为敏感而发生较大位移.在银纳米粒子组装结构上,荧光素分子的荧光得到极大增强,其表面增强效应强烈依赖于组装金属粒子的表面等离子体共振.

关 键 词:银纳米粒子  表面等离子体共振  表面增强荧光光谱  荧光素  吸收光谱
文章编号:1004-8138(2007)04-0539-03
修稿时间:2007-04-02

Surface-Enhanced Fluorescence Effect of Silver Nanoparticle Assembled Structure
JING Quan-Ying,ZHOU Qun,ZHAO Jin-Jin,ZHENG Jun-Wei.Surface-Enhanced Fluorescence Effect of Silver Nanoparticle Assembled Structure[J].Chinese Journal of Spectroscopy Laboratory,2007,24(4):539-541.
Authors:JING Quan-Ying  ZHOU Qun  ZHAO Jin-Jin  ZHENG Jun-Wei
Institution:Department of Chemistry, Suzhou University, Suzhou ,Jiangsu 215006, P. R. China
Abstract:Two-dimensional structure of silver nanoparticles was constructed on a glass slide by self-assembly technique.The absorption spectra of the assembled silver nanoparticles indicate that the surface plasmon resonance (SPR) of the silver nanoparticles is associated with the electromagnetic coupling between the particles.More sensitive effect on dipolar SPR and larger band shift were observed.Great enhancement of fluorescence of the fluorescein molecules was obtained on the assembled structure of the silver nanoparticles.The enhancement strongly relay on the SPR of the metal nanoparticles.
Keywords:Silver Nanoparticle  Surface Plasmon Resonance  Surface-Enhanced Fluorescence Spectroscopy  Fluorescein  Absorption Spectroscopy
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