Controlled Living Nanowire Growth: Precise Control over the Morphology and Optical Properties of AgAuAg Bimetallic Nanowires

Mayer M, Scarabelli L, March K, Altantzis T, Tebbe M, Kociak M, Bals S, Javier Garcia De Abajo F, Fery A, Liz-Marzan LM (2015)

Publication Type: Journal article

Publication year: 2015

Journal

Nano Letters American Chemical Society

Book Volume: 15

Pages Range: 5427-5437

Journal Issue: 8

DOI: 10.1021/acs.nanolett.5b01833

Abstract

Inspired by the concept of living polymerization reaction, we are able to produce silver-gold-silver nanowires with a precise control over their total length and plasmonic properties by establishing a constant silver deposition rate on the tips of penta-twinned gold nanorods used as seed cores. Consequently, the length of the wires increases linearly in time. Starting with ∼210 nm × 32 nm gold cores, we produce nanowire lengths up to several microns in a highly controlled manner, with a small self-limited increase in thickness of ∼4 nm, corresponding to aspect ratios above 100, whereas the low polydispersity of the product allows us to detect up to nine distinguishable plasmonic resonances in a single colloidal solution. We analyze the spatial distribution and the nature of the plasmons by electron energy loss spectroscopy and obtain excellent agreement between measurements and electromagnetic simulations, clearly demonstrating that the presence of the gold core plays a marginal role, except for relatively short wires or high-energy modes.

Involved external institutions

Universität Bayreuth DE Germany (DE) CIC biomaGUNE (Centro de Investigación Cooperativa en Biomateriales) ES Spain (ES) University of Paris 11 - Paris-Sud / Université Paris XI Paris-Sud FR France (FR) University of Antwerp / Universiteit Antwerpen BE Belgium (BE) Institute Of Photonic Sciences / Instituto de Ciencias Fotónicas / Institut de Ciències Fotòniques (ICFO-CERCA) ES Spain (ES)

How to cite

APA:

Mayer, M., Scarabelli, L., March, K., Altantzis, T., Tebbe, M., Kociak, M.,... Liz-Marzan, L.M. (2015). Controlled Living Nanowire Growth: Precise Control over the Morphology and Optical Properties of AgAuAg Bimetallic Nanowires. Nano Letters, 15(8), 5427-5437. https://doi.org/10.1021/acs.nanolett.5b01833

MLA:

Mayer, Martin, et al. "Controlled Living Nanowire Growth: Precise Control over the Morphology and Optical Properties of AgAuAg Bimetallic Nanowires." Nano Letters 15.8 (2015): 5427-5437.

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