基于银树枝状晶体基底的表面增强拉曼散射

Surface enhanced Raman scattering based on silver dendrites substrate.

作者信息

Song Wei, Cheng Yuchuan, Jia Huiying, Xu Weiqing, Zhao Bing

机构信息

Key Laboratory of Supramolecular Structure and Materials of Ministry of Education, Jilin University, 2699#, Qianjin Street, Changchun 130012, People's Republic of China.

出版信息

J Colloid Interface Sci. 2006 Jun 15;298(2):765-8. doi: 10.1016/j.jcis.2006.01.037. Epub 2006 Feb 3.

DOI:10.1016/j.jcis.2006.01.037

PMID:16458915

Abstract

A simple method of the reduction of AgNO3 by copper foil in aqueous medium was used to prepare silver dendrites, which can be used as a novel good reproducible surface enhanced Raman scattering (SERS) active substrate. The SERS spectra of 4-pyridinethiol on this novel substrate reflected the different SERS activities on the minuteness and strong Ag dendrites. The electromagnetic coupling enhancement and chemical enhancement mechanisms are used to explain the SERS effect.

摘要

采用一种在水介质中用铜箔还原硝酸银的简单方法制备银树枝晶，其可作为一种新型的具有良好重现性的表面增强拉曼散射（SERS）活性基底。4-吡啶硫醇在这种新型基底上的SERS光谱反映了在微小且粗壮的银树枝晶上不同的SERS活性。利用电磁耦合增强和化学增强机制来解释SERS效应。