Gold Nanoparticle Aggregate Morphology with Controllable Interparticle Spacing Prepared by a Polyelectrolyte Network Template

Feng Zhao; Jing Kun Xun; Shu Feng Liu

doi:10.1071/CH07225

RESEARCH ARTICLE

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Gold Nanoparticle Aggregate Morphology with Controllable Interparticle Spacing Prepared by a Polyelectrolyte Network Template

Feng Zhao ^A ^C , Jing Kun Xun ^A and Shu Feng Liu ^B

+ Author Affiliations

- Author Affiliations

^A Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China.

^B College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.

^C Corresponding author. Email: zhf19752003@yahoo.com.cn

Australian Journal of Chemistry 61(1) 1-4 https://doi.org/10.1071/CH07225
Submitted: 29 June 2007 Accepted: 4 November 2007 Published: 18 January 2008

Abstract

Gold nanoparticle self-assembly behaviour on a mica surface was investigated. A large-scale modified partially hydrated polyacrylamide network on a mica surface was successfully fabricated with a simple method. Gold nanoparticles were self-assembled onto a two-dimensional polymer network template by electrostatic interaction, and an interesting nanostructured gold morphology with controllable interparticle spacing was formed on the mica surface. By adjusting the gold aqueous concentrations, the particle distance could be optimized to approach strongest coupling between adjacent particles and match the plasmon resonance wavelength to the laser excitation wavelength. Thus, the spacing between nanoparticles could be controlled for tunable surface-enhanced Raman scattering substrates for optimal signal amplification.

References

Gold Nanoparticle Aggregate Morphology with Controllable Interparticle Spacing Prepared by a Polyelectrolyte Network Template

Abstract

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