银岛膜中银颗粒间表面电磁波的耦合  

Mutual Coupling of Surface Electromagnetic Wave Between Silver Particles: Studies on the Mechanism of the Surface Enhanced Infrared Spectroscopy

作　　者：张锦[1] 赵江[2] 何会新[2] 张浩力[1] 力虎林[1] 刘忠范[2] 

机构地区：[1]兰州大学化学系,兰州73000 [2]北京大学化学与分子工程学院智能材料研究中心,北京100871

出　　处：《物理化学学报》1998年第4期375-379,共5页Acta Physico-Chimica Sinica

基　　金：国家攀登计划资助

摘　　要：Mutual coupling of surface electromagnetic wave between different silver particles onsilver island substrates is realized experimentally and its effect on surface enhanced infrared spec-troscopy is studied. Silvcr island substrates of different size and distribution of silver particleshave been prepared by the vacuum evaporation and rapid thermal annealing, and characterizedby atomic force microscopy (AFM) and UV-visiblc spectroscopy. The surface enhanced infraredspectra of 4-Octyl-4’-(3-carboxy-trimethylene -oxy)-azobenzene (referred as ABD) LB monolayerare studied on such silver island films. The results elucidates the important role of the coupling ofsurface electromagnetic wave between silver particles in surface enhanced infrared spectroscopy.Mutual coupling of surface electromagnetic wave between different silver particles onsilver island substrates is realized experimentally and its effect on surface enhanced infrared spec-troscopy is studied. Silvcr island substrates of different size and distribution of silver particleshave been prepared by the vacuum evaporation and rapid thermal annealing, and characterizedby atomic force microscopy (AFM) and UV-visiblc spectroscopy. The surface enhanced infraredspectra of 4-Octyl-4'-(3-carboxy-trimethylene -oxy)-azobenzene (referred as ABD) LB monolayerare studied on such silver island films. The results elucidates the important role of the coupling ofsurface electromagnetic wave between silver particles in surface enhanced infrared spectroscopy.

关 键 词：表面增强 红外光谱 表面电磁波耦合 银岛膜 LB膜 

分 类 号：O657.33[理学—分析化学]