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Issue 24, 2011
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Gold quasi rod-shaped nanoparticle-built hierarchically micro/nanostructured pore array via clean electrodeposition on a colloidal monolayer and its structurally enhanced SERS performance

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Abstract

This paper presents a clean electrodeposition strategy to fabricate a gold hierarchically micro/nanostructured pore array based on a polystyrene sphere colloidal monolayer. The electrodeposition is carried out in an additive-free HAuCl4 electrolyte to assure a gold structure without surface adsorption of surfactants. By controlling the electrodeposition time, the nano-building blocks in the array can be controlled from quasi spherical nanoparticles to quasi rod-shaped nanostructures. Importantly, the gold quasi rod-shaped nanoparticle-built hierarchically micro/nanostructured pore array shows structurally enhanced surface-enhanced Raman scattering (SERS) performance: high activity, nice uniformity and good stability. Such an array as a SERS active substrate may find important applications in analytical chemistry, electrochemistry, sensors, and so on.

Graphical abstract: Gold quasi rod-shaped nanoparticle-built hierarchically micro/nanostructured pore array via clean electrodeposition on a colloidal monolayer and its structurally enhanced SERS performance

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Article information


Submitted
21 Feb 2011
Accepted
05 Apr 2011
First published
13 May 2011

J. Mater. Chem., 2011,21, 8816-8821
Article type
Paper

Gold quasi rod-shaped nanoparticle-built hierarchically micro/nanostructured pore array via clean electrodeposition on a colloidal monolayer and its structurally enhanced SERS performance

J. Wang, G. Duan, G. Liu, Y. Li, Z. Dai, H. Zhang and W. Cai, J. Mater. Chem., 2011, 21, 8816
DOI: 10.1039/C1JM10773A

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