Year: 2014
Type: article
Abstract: Gold nanoparticles are separated above a planar gold film by 1.1 nm thick self-assembled molecular monolayers of different conductivities. Incremental replacement of the nonconductive molecules with a chemically equivalent conductive version differing by only one atom produces a strong 50 nm blue-shift of the coupled plasmon. With modeling this gives a conductance of 0.17G(0) per biphenyl-4,4'-dithiol molecule and a total conductance across the plasmonic junction of 30G(0). Our approach provides a reliable tool quantifying the number of molecules in each plasmonic hotspot, here <200.
Source: Nano Letters
DOI: 10.1021/nl5041786
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,123
Awards: Cucurbitrils for Hardwired Optical and Electronic Self-assembly, G118149953, G153013272, Low-Dimensional Chemistry, Soft NanoPhotonics Programme Grant (sNaP), Protein Manipulation in Lipid Bilayers using Surface Acoustic Waves, G412519974, Engineering Therapeutic Microbubbles, G506691189, G5178060574, G5507171923, Programmable nano-assembly of plasmonic materials for molecular interactions, G630479105, Nano-Optics to controlled Nano-Chemistry Programme Grant (NOtCH), G7085168280, Microbubbles for Hydrophobic Drug Delivery and Enhanced Diagnostics; Towards Personalised Healthcare for the Treatment of Colorectal Cancer, A Spin-Crossover Module for Monolayers and Supramolecular Architectures - Cooperativity in Two Dimensions
OpenAlex ID: W2016852573