In-Situ Spectro-Electrochemistry of Conductive Polymers Using Plasmonics to Reveal Doping Mechanisms
Conducting polymers are a key component for developing wearable organic electronics, but tracking their redox processes at the nanoscale to understand their doping mechanism remains challenging. Here we present an in-situ spectro-electrochemical technique to observe redox dynamics of conductive polymers in an extremely localized volume (<100 nm3). Plasmonic nanoparticles encapsulated by thin shells of different conductive polymers provide actively tuned scattering color through switching their refractive index. Surface-enhanced Raman scattering in combination with cyclic voltammetry enables detailed studies of the redox/doping process. Our data intriguingly show that the doping mechanism varies with polymer conductivity: a disproportionation mechanism dominates in more conductive polymers, while sequential electron transfer prevails in less conductive polymers.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:16 |
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| Enthalten in: |
ACS nano - 16(2022), 12 vom: 27. Dez., Seite 21120-21128 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Peng, Jialong [VerfasserIn] |
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| Links: |
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| Themen: |
Conductive polymers |
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| Anmerkungen: |
Date Completed 05.01.2023 Date Revised 11.01.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/acsnano.2c09081 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM349811792 |
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| 520 | |a Conducting polymers are a key component for developing wearable organic electronics, but tracking their redox processes at the nanoscale to understand their doping mechanism remains challenging. Here we present an in-situ spectro-electrochemical technique to observe redox dynamics of conductive polymers in an extremely localized volume (<100 nm3). Plasmonic nanoparticles encapsulated by thin shells of different conductive polymers provide actively tuned scattering color through switching their refractive index. Surface-enhanced Raman scattering in combination with cyclic voltammetry enables detailed studies of the redox/doping process. Our data intriguingly show that the doping mechanism varies with polymer conductivity: a disproportionation mechanism dominates in more conductive polymers, while sequential electron transfer prevails in less conductive polymers | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Földes, Tamás |e verfasserin |4 aut | |
| 700 | 1 | |a Jeong, Hyeon-Ho |e verfasserin |4 aut | |
| 700 | 1 | |a Xiong, Yuling |e verfasserin |4 aut | |
| 700 | 1 | |a Pitsalidis, Charalampos |e verfasserin |4 aut | |
| 700 | 1 | |a Malliaras, George G |e verfasserin |4 aut | |
| 700 | 1 | |a Rosta, Edina |e verfasserin |4 aut | |
| 700 | 1 | |a Baumberg, Jeremy J |e verfasserin |4 aut | |
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