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Conductive polymer nanoantennas for dynamic organic plasmonics

Chen, Shangzhi ; Kang, Evan S.H. ; Shiran Chaharsoughi, Mina ; Stanishev, Vallery LU orcid ; Kühne, Philipp ; Sun, Hengda ; Wang, Chuanfei ; Fahlman, Mats ; Fabiano, Simone and Darakchieva, Vanya LU , et al. (2020) In Nature Nanotechnology 15(1). p.35-40
Abstract

Being able to dynamically shape light at the nanoscale is one of the ultimate goals in nano-optics1. Resonant light–matter interaction can be achieved using conventional plasmonics based on metal nanostructures, but their tunability is highly limited due to a fixed permittivity2. Materials with switchable states and methods for dynamic control of light–matter interaction at the nanoscale are therefore desired. Here we show that nanodisks of a conductive polymer can support localized surface plasmon resonances in the near-infrared and function as dynamic nano-optical antennas, with their resonance behaviour tunable by chemical redox reactions. These plasmons originate from the mobile polaronic charge carriers of a... (More)

Being able to dynamically shape light at the nanoscale is one of the ultimate goals in nano-optics1. Resonant light–matter interaction can be achieved using conventional plasmonics based on metal nanostructures, but their tunability is highly limited due to a fixed permittivity2. Materials with switchable states and methods for dynamic control of light–matter interaction at the nanoscale are therefore desired. Here we show that nanodisks of a conductive polymer can support localized surface plasmon resonances in the near-infrared and function as dynamic nano-optical antennas, with their resonance behaviour tunable by chemical redox reactions. These plasmons originate from the mobile polaronic charge carriers of a poly(3,4-ethylenedioxythiophene:sulfate) (PEDOT:Sulf) polymer network. We demonstrate complete and reversible switching of the optical response of the nanoantennas by chemical tuning of their redox state, which modulates the material permittivity between plasmonic and dielectric regimes via non-volatile changes in the mobile charge carrier density. Further research may study different conductive polymers and nanostructures and explore their use in various applications, such as dynamic meta-optics and reflective displays.

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publishing date
type
Contribution to journal
publication status
published
in
Nature Nanotechnology
volume
15
issue
1
pages
6 pages
publisher
Nature Publishing Group
external identifiers
  • pmid:31819242
  • scopus:85076515412
ISSN
1748-3387
DOI
10.1038/s41565-019-0583-y
language
English
LU publication?
no
additional info
Publisher Copyright: © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
id
d201dc08-c853-4b56-9165-68447db1231b
date added to LUP
2025-11-06 16:36:22
date last changed
2025-11-11 15:40:49
@article{d201dc08-c853-4b56-9165-68447db1231b,
  abstract     = {{<p>Being able to dynamically shape light at the nanoscale is one of the ultimate goals in nano-optics<sup>1</sup>. Resonant light–matter interaction can be achieved using conventional plasmonics based on metal nanostructures, but their tunability is highly limited due to a fixed permittivity<sup>2</sup>. Materials with switchable states and methods for dynamic control of light–matter interaction at the nanoscale are therefore desired. Here we show that nanodisks of a conductive polymer can support localized surface plasmon resonances in the near-infrared and function as dynamic nano-optical antennas, with their resonance behaviour tunable by chemical redox reactions. These plasmons originate from the mobile polaronic charge carriers of a poly(3,4-ethylenedioxythiophene:sulfate) (PEDOT:Sulf) polymer network. We demonstrate complete and reversible switching of the optical response of the nanoantennas by chemical tuning of their redox state, which modulates the material permittivity between plasmonic and dielectric regimes via non-volatile changes in the mobile charge carrier density. Further research may study different conductive polymers and nanostructures and explore their use in various applications, such as dynamic meta-optics and reflective displays.</p>}},
  author       = {{Chen, Shangzhi and Kang, Evan S.H. and Shiran Chaharsoughi, Mina and Stanishev, Vallery and Kühne, Philipp and Sun, Hengda and Wang, Chuanfei and Fahlman, Mats and Fabiano, Simone and Darakchieva, Vanya and Jonsson, Magnus P.}},
  issn         = {{1748-3387}},
  language     = {{eng}},
  month        = {{01}},
  number       = {{1}},
  pages        = {{35--40}},
  publisher    = {{Nature Publishing Group}},
  series       = {{Nature Nanotechnology}},
  title        = {{Conductive polymer nanoantennas for dynamic organic plasmonics}},
  url          = {{http://dx.doi.org/10.1038/s41565-019-0583-y}},
  doi          = {{10.1038/s41565-019-0583-y}},
  volume       = {{15}},
  year         = {{2020}},
}