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

Steven J. Barrow; Aniello Palma; Bart De Nijs; Rohit Chikkaraddy; Richard W. Bowman; Jeremy J. Baumberg; Oren A. Scherman

doi:10.1039/d0nr00902d

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

Steven J. Barrow, Aniello Palma, Bart De Nijs, Rohit Chikkaraddy, Richard W. Bowman, Jeremy J. Baumberg, Oren A. Scherman

Research output: Contribution to journal › Article › peer-review

2 Citations (SciVal)

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.

Original language	English
Pages (from-to)	8706-8710
Number of pages	5
Journal	Nanoscale
Volume	12
Issue number	16
Early online date	3 Apr 2020
DOIs	https://doi.org/10.1039/d0nr00902d
Publication status	Published - 28 Apr 2020

Funding

S. J. B. acknowledges support from the European Commission for a Marie Curie Fellowship (NANOSPHERE, 658360). A. P. and O. A. S. acknowledge an ERC starting investigator grant (ASPiRe 240629) and EPSRC Programme Grant (NOtCH, EP/ L027151/1) for support. 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. The authors would like to thank Dr Helena Shephered for valuable discussions.

ASJC Scopus subject areas

General Materials Science

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10.1039/d0nr00902d

https://www.repository.cam.ac.uk/handle/1810/303962

Cite this

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title = "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.",

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AU - Barrow, Steven J.

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AU - Chikkaraddy, Rohit

AU - Bowman, Richard W.

AU - Baumberg, Jeremy J.

AU - Scherman, Oren A.

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AB - 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.

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

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