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Conductive polymer nanoantennas for dynamicorganic plasmonics
Linköping University, Department of Science and Technology, Laboratory of Organic Electronics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-7410-2531
Linköping University, Department of Science and Technology, Laboratory of Organic Electronics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0001-8942-4077
Linköping University, Department of Science and Technology, Laboratory of Organic Electronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, Faculty of Science & Engineering.
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2020 (English)In: Nature Nanotechnology, ISSN 1748-3387, E-ISSN 1748-3395, Vol. 15, article id s41565-019-0583-yArticle in journal, Letter (Refereed) Published
Abstract [en]

Being able to dynamically shape light at the nanoscale is oneof the ultimate goals in nano-optics1. Resonant light–matterinteraction can be achieved using conventional plasmonicsbased on metal nanostructures, but their tunability is highlylimited due to a fixed permittivity2. Materials with switchablestates and methods for dynamic control of light–matterinteraction at the nanoscale are therefore desired. Here weshow that nanodisks of a conductive polymer can supportlocalized surface plasmon resonances in the near-infraredand function as dynamic nano-optical antennas, with their resonancebehaviour tunable by chemical redox reactions. Theseplasmons originate from the mobile polaronic charge carriersof a poly(3,4-ethylenedioxythiophene:sulfate) (PEDOT:Sulf)polymer network. We demonstrate complete and reversibleswitching of the optical response of the nanoantennasby chemical tuning of their redox state, which modulatesthe material permittivity between plasmonic and dielectricregimes via non-volatile changes in the mobile chargecarrier density. Further research may study different conductivepolymers and nanostructures and explore their usein various applications, such as dynamic meta-optics andreflective displays.

Place, publisher, year, edition, pages
London: Nature Publishing Group, 2020. Vol. 15, article id s41565-019-0583-y
National Category
Atom and Molecular Physics and Optics
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URN: urn:nbn:se:liu:diva-163089DOI: 10.1038/s41565-019-0583-yScopus ID: 2-s2.0-85076515412OAI: oai:DiVA.org:liu-163089DiVA, id: diva2:1384782
Available from: 2020-01-10 Created: 2020-01-10 Last updated: 2020-01-14Bibliographically approved

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Chen, ShangzhiKang, Evan S. H.Shiran Chaharsoughi, MinaStanishev, ValleryKuhne, PhilippSun, HengdaWang, ChuanfeiFahlman, MatsFabiano, SimoneDarakchieva, VanyaJonsson, Magnus

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Chen, ShangzhiKang, Evan S. H.Shiran Chaharsoughi, MinaStanishev, ValleryKuhne, PhilippSun, HengdaWang, ChuanfeiFahlman, MatsFabiano, SimoneDarakchieva, VanyaJonsson, Magnus
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Laboratory of Organic ElectronicsFaculty of Science & EngineeringSemiconductor Materials
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