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Issue 3, 2015
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A high transmission wave-guide wire network made by self-assembly

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Abstract

Polymer self-assembly of a 3D continuous gyroid morphology was replicated into a network consisting of hollow gold struts. This was achieved by first replicating a gyroid structured film into nickel. The Ni network was employed as an electrode for electrochemical Au deposition, followed by the removal of Ni. The resulting hollow network of plasmonic gold exhibited a substantial optical transmission enhancement by a factor of nearly 3, compared to a network of full Au struts. The overall transmission across the hollow wave-guide morphology depends sensitively on the wall-thickness of the hollow struts down to 1 nm. The dramatic transmission increase arises from an interplay of three mechanisms: (1) the additional number of modes propagating through the wave-guide structure, (2) the increased efficiency of light in-coupling, and (3) a reduction of dissipation by decreasing the Au-volume experienced in plasmon mode propagation.

Graphical abstract: A high transmission wave-guide wire network made by self-assembly

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Publication details

The article was received on 05 Aug 2014, accepted on 20 Nov 2014 and first published on 21 Nov 2014


Article type: Paper
DOI: 10.1039/C4NR04485A
Author version available: Download Author version (PDF)
Citation: Nanoscale, 2015,7, 1032-1036
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    A high transmission wave-guide wire network made by self-assembly

    S. Salvatore, S. Vignolini, J. Philpott, M. Stefik, U. Wiesner, J. J. Baumberg and U. Steiner, Nanoscale, 2015, 7, 1032
    DOI: 10.1039/C4NR04485A

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