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 journalArticle

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 languageEnglish
Pages (from-to)8706-8710
Number of pages5
JournalNanoscale
Volume12
Issue number16
Early online date3 Apr 2020
DOIs
Publication statusPublished - 28 Apr 2020

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Barrow, S. J., Palma, A., De Nijs, B., Chikkaraddy, R., Bowman, R. W., Baumberg, J. J., & Scherman, O. A. (2020). Nanometer control in plasmonic systems through discrete layer-by-layer macrocycle-cation deposition. Nanoscale, 12(16), 8706-8710. https://doi.org/10.1039/d0nr00902d