Issue 24, 2011

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

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

Article information

Article type
Paper
Submitted
21 Feb 2011
Accepted
05 Apr 2011
First published
13 May 2011

J. Mater. Chem., 2011,21, 8816-8821

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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