Rapid fabrication of Au nanoparticle films with the aid of centrifugal force

Zhai, Junfeng, Wang, Yuling, Zhai, Yueming and Dong, Shaojun (2009) Rapid fabrication of Au nanoparticle films with the aid of centrifugal force. Nanotechnology, 20 5: . doi:10.1088/0957-4484/20/5/055609

Author Zhai, Junfeng
Wang, Yuling
Zhai, Yueming
Dong, Shaojun
Title Rapid fabrication of Au nanoparticle films with the aid of centrifugal force
Journal name Nanotechnology   Check publisher's open access policy
ISSN 0957-4484
Publication date 2009
Year available 2009
Sub-type Article (original research)
DOI 10.1088/0957-4484/20/5/055609
Open Access Status
Volume 20
Issue 5
Total pages 7
Place of publication Bristol, United Kingdom
Publisher Institute of Physics Publishing Ltd.
Collection year 2009
Language eng
Subject 1502 Banking, Finance and Investment
1600 Chemistry
2208 Electrical and Electronic Engineering
2210 Mechanical Engineering
2211 Mechanics of Materials
2500 Materials Science
Abstract In this work, rapid fabrication of Au nanoparticle (Au NP) films has been simply achieved by alternate adsorption of citrate-stabilized Au NPs and poly(diallyldimethylammonium chloride) with the aid of centrifugal force. In contrast to conventional electrostatic assembly, we carried out the assembly process in a centrifuge with a rotating speed of 4000rpm, where centrifugal force can be imposed on Au NPs. Scanning electron microscopy and cyclic voltammetry were employed to characterize the assembly procedure and the thus-prepared thin solid films. Our results demonstrate that centrifugal force can promote the assembly of Au NPs and therefore enable the rapid fabrication of functional Au NP films. The thus-prepared Au NP films can serve as surface enhanced Raman scatting (SERS) substrates with tunable SERS signal intensity. This method is simple, rapid, and can be used as a general method to rapidly assemble other charged nanoparticles.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
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