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Updated: Apr 5, 2026

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Published on: December 11, 2013

Molecular Plasmonics.

Adam Lauchner¹, Andrea E Schlather¹, Alejandro Manjavacas¹

¹Laboratory for Nanophotonics, Smalley-Curl Institute, Rice University Houston, Texas 77005, United States.

|August 6, 2015

Summary

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Researchers discovered molecular plasmon resonances in ionized polycyclic aromatic hydrocarbons (PAHs) in the visible spectrum. These switchable molecular plasmons offer tunable light manipulation for nanoscale applications and electrochromic devices.

Area of Science:

Nanophotonics
Molecular Plasmonics
Materials Science

Background:

Graphene supports tunable surface plasmons in the mid- to far-infrared.
Extending plasmonic tunability to the visible spectrum is a significant challenge.

Purpose of the Study:

To demonstrate molecular plasmon resonances in the visible spectrum.
To show electrical and geometrical tunability of these molecular plasmons.
To explore applications in nanoscale light manipulation and devices.

Main Methods:

Experimental investigation of ionized polycyclic aromatic hydrocarbons (PAHs).
Utilizing reversible electron addition/removal to switch plasmonic properties.
Characterizing absorption spectra and tunability.

Keywords:

Plasmonics electrochemistry graphene photonics polyacenes polycyclic aromatic hydrocarbons

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Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

Published on: May 28, 2016

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

Published on: April 4, 2017

Related Experiment Videos

Last Updated: Apr 5, 2026

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Published on: December 11, 2013

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

Published on: May 28, 2016

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

Published on: April 4, 2017

Main Results:

Demonstrated molecular plasmon resonances in the visible for ionized PAHs.
Showcased electrical and geometrical tunability analogous to graphene plasmons.
Developed a proof-of-concept low-voltage electrochromic device using switchable molecular plasmons.

Conclusions:

Molecular plasmons in ionized PAHs offer a pathway to visible light manipulation at the nanoscale.
This work extends plasmonics to molecular systems with potential for novel optical devices.