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Issue 32, 2011
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Janus particle arrays with multiple structural controlling abilities synthesized by seed-directed deposition

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Abstract

Janus particle arrays have attracted much investigation interest in recent years due to their wide application potentialities. Here, we introduce a new protocol to synthesize Janus particle arrays depending on seed-directed eletrophoretic deposition on monolayer colloidal crystal (MCC) templates. The size and feature of the Janus particles can be conveniently tailored by selecting different sized polystyrene spheres and deposition current densities and/or times, respectively. Non-close-packed Janus particle arrays can be prepared by adopting plasma treated monolayer colloidal crystal templates. The spacing between neighbouring Janus particles in the ordered array is determined by the plasma etching time of the MCC template. Due to the symmetry breaking and the plasmon hybridization, the Janus particle arrays show interesting plasmonic properties. They have multiple plasmonic peaks and have infrared absorption, making them have applications in sensing and bio-related areas.

Graphical abstract: Janus particle arrays with multiple structural controlling abilities synthesized by seed-directed deposition

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Publication details

The article was received on 13 Jan 2011, accepted on 26 May 2011 and first published on 11 Jul 2011


Article type: Paper
DOI: 10.1039/C1JM10197H
J. Mater. Chem., 2011,21, 11930-11935

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    Janus particle arrays with multiple structural controlling abilities synthesized by seed-directed deposition

    S. Yang, J. Xu, Z. Wang, H. Zeng and Y. Lei, J. Mater. Chem., 2011, 21, 11930
    DOI: 10.1039/C1JM10197H

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