Self-assembled nanostructure of Au nanoparticles on a self-assembled monolayer

被引：15

作者：

Wakamatsu, S ^{[1
]}

Nakada, J ^{[1
]}

Fujii, S ^{[1
]}

Akiba, U ^{[1
]}

Fujihira, M ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Biomol Engn, Midori Ku, Yokohama, Kanagawa 2268501, Japan

来源：

ULTRAMICROSCOPY | 2005年 / 105卷 / 1-4期

关键词：

nanostructure; Au nanoparticle; self-assembled monolayer; scanning tunneling microscopy;

D O I：

10.1016/j.ultramic.2005.06.014

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

We investigated self-assembled nanostructure of Au nanoparticles (AuNPs) on a dithiol-inserted self-assembled monolayer (SAM) using scanning tunneling microscopy (STM). Phosphine-stabilized AuNPs were immobilized on the SAM covering an Au(111) surface by the dithiol anchoring bridges. The phosphine-stabilized AuNPs were transformed to dithiol-stabilized AuNPs by a ligand exchange reaction. The additional phosphine-stabilized AuNPs were attached to the dithiol-stabilized AuNPs on the SAM surface. The dithiol-stabilized AuNPs act as nuclei of stepwise reactions for forming self-assembled nanostructure of AuNPs. We observed a variety of nanostructures of AuNPs using STM. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：26 / 31

页数：6

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