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


Type
Article
Change log
Authors
Barrow, Steven J 
Palma, Aniello 
de Nijs, Bart 
Bowman, Richard W 
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.

Description
Keywords
3403 Macromolecular and Materials Chemistry, 40 Engineering, 34 Chemical Sciences, 4018 Nanotechnology, Bioengineering, Nanotechnology
Journal Title
Nanoscale
Conference Name
Journal ISSN
2040-3364
2040-3372
Volume Title
12
Publisher
Royal Society of Chemistry (RSC)
Rights
All rights reserved
Sponsorship
European Commission (658360)
European Research Council (240629)
Engineering and Physical Sciences Research Council (EP/L027151/1)
Isaac Newton Trust (18.08(K))
Leverhulme Trust (ECF-2018-021)
Engineering and Physical Sciences Research Council (EP/G060649/1)
European Commission for a Marie Curie Fellowship (NANOSPHERE, 658360) ERC starting investigator grant (ASPiRe 240629) RC acknowledges support from the Dr. Manmohan Singh scholarship from St. John’s College BdN acknowledges support from the Leverhulme Trust and the Isaac Newton trust ECF.