Issue 16, 2020

Nanometer control in plasmonic systems through discrete layer-by-layer macrocycle–cation deposition

Abstract

In this work, we demonstrate that coordination interactions between Fe3+ and cucurbit[7]uril (CB[7]) can be utilised to build up defined nanoscale spacing layers in metallic nanosystems. We begin by characterising the layer-by-layer deposition of CB[7] and FeCl3·6H2O coordination layers through the use of a Quartz-Crystal Microbalance (QCM) and contact angle measurements. We then apply this layered structure to accurately control the spacing, and thus optical properties, of gold nanoparticles in a Nanoparticle-on-Mirror (NPoM) structure, which is demonstrated via normalising plasmon resonance spectroscopy.

Graphical abstract: Nanometer control in plasmonic systems through discrete layer-by-layer macrocycle–cation deposition

Supplementary files

Article information

Article type
Communication
Submitted
02 Feb 2020
Accepted
18 Mar 2020
First published
03 Apr 2020

Nanoscale, 2020,12, 8706-8710

Nanometer control in plasmonic systems through discrete layer-by-layer macrocycle–cation deposition

S. J. Barrow, A. Palma, B. de Nijs, R. Chikkaraddy, R. W. Bowman, J. J. Baumberg and O. A. Scherman, Nanoscale, 2020, 12, 8706 DOI: 10.1039/D0NR00902D

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