Electrochemical growth of flowerlike gold nanoparticles on polydopamine modified ITO glass for SERS application

被引：138

作者：

Ye, Weichun ^{[1
]}

Wang, Daoai ^{[1
]}

Zhang, Hong ^{[1
]}

Zhou, Feng ^{[1
]}

Liu, Weimin ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2010年 / 55卷 / 06期

关键词：

Flowerlike gold nanostructure; Polydopamine; Electrochemical deposition; Surface-enhanced Raman scattering; ENHANCED RAMAN-SPECTROSCOPY; SURFACE; NANOSTRUCTURES; FILMS; ELECTRODEPOSITION; MORPHOLOGY; SCATTERING;

D O I：

10.1016/j.electacta.2009.11.022

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A functional biopolymer - polydopamine (Pdop) layer was easily modified on the surface of indium tin oxide substrates by spontaneous oxidative polymerization in a dopamine solution. The Pdop layer functions as a novel and promising protector for electrochemical growth of flowerlike gold nanostructures (AuNFs). Electrochemical investigations and SEM results demonstrate that Pdop coating is favored to rapid gold nucleation. The application of AuNFs in surface-enhanced Raman scattering is investigated by using rhodamine 6G as probe molecule. Its detection limit reaches as low as 10(-12) M. Pdop coating as a functional platform to prepare AuNFs is promising for potential applications in sensitive optical chemical sensors. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2004 / 2009

页数：6

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