Nanometer control in plasmonic systems through discrete layer-by-layer macrocycle–cation deposition. Issue 16 (9th April 2020)

• Record Type: Journal Article
• Authors: Barrow, Steven J.; Palma, Aniello; de Nijs, Bart; Chikkaraddy, Rohit; Bowman, Richard W.; Baumberg, Jeremy J.; Scherman, Oren A.
• Is Part Of: Nanoscale. Volume 12:Issue 16(2020)
• Page Start: 8706
• Page End: 8710
• Publication Date: 2020-04-09
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/d0nr00902d
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : We demonstrate that cucurbit[7]uril coordinates Fe 3+ to yield a novel and well-defined metallic nanopolymer with great potential as plasmonic system. Abstract : In this work, we demonstrate that coordination interactions between Fe 3+ 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 ·6H2 O 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.