Deposition of the fractal-like gold particles onto electrospun polymethylmethacrylate fibrous mats and their application in surface-enhanced Raman scattering

被引：23

作者：

Guo, Bin ^{[1
]}

Han, Gaoyi ^{[1
]}

Li, Miaoyu ^{[1
]}

Zhao, Shizhen ^{[1
]}

机构：

[1] Shanxi Univ, Inst Mol Sci, Educ Minist, Key Lab Chem Biol & Mol Engn, Taiyuan 030006, Peoples R China

来源：

THIN SOLID FILMS | 2010年 / 518卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Coatings; Gold; Raman scattering; Surface structure; Electrospinning; Fractal; OPTICAL-PROPERTIES; METAL NANOPARTICLES; SILVER NANOCUBES; FABRICATION; SERS; SHAPE; NANOSTRUCTURES; SPECTROSCOPY; OXIDATION; COLLOIDS;

D O I：

10.1016/j.tsf.2009.10.148

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ultrafine polymethylmethacrylate fibers containing gold nanoparticles have been prepared by using the electrospinning technique. Then the continuously coarse gold films formed by fractal-like thorny gold particles were deposited on the organic eletrospun fiber surface by an electroless process. The morphology of coarse gold films was characterized by scanning electron and transmission electron microscopy. The results revealed that the morphology of the gold particles was affected not only by the amount of gold seeds embedded in the organic fibers but also by the amount of gold deposited on the fiber's surfaces. The surface-enhanced Raman scattering (SERS) effect of the fibrous mats coated with gold films was evaluated by using Rhodamine B as an adsorbate. The results indicated that this kind of fibrous mat exhibited high and reproducible SERS activity and could be developed as highly sensitive SERS substrate. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：3228 / 3233

页数：6