Cited by 135Photochemistry and Electron Transfer StudiesOrganic Electronics and PhotovoltaicsLuminescence and Fluorescent Materials

Switching between H- and J-type electronic coupling in single conjugated polymer aggregates

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Eder, Theresa, Stangl, Thomas, Gmelch, Max, Remmerssen, Klaas, Laux, Dirk, Höger, Sigurd, Lupton, John M., Vogelsang, Jan·2017·Nature Communications

Abstract

The aggregation of conjugated polymers and electronic coupling of chromophores play a central role in the fundamental understanding of light and charge generation processes. Here we report that the predominant coupling in isolated aggregates of conjugated polymers can be switched reversibly between H-type and J-type coupling by partially swelling and drying the aggregates. Aggregation is identified by shifts in photoluminescence energy, changes in vibronic peak ratio, and photoluminescence lifetime. This experiment unravels the internal electronic structure of the aggregate and highlights the importance of the drying process in the final spectroscopic properties. The electronic coupling after drying is tuned between H-type and J-type by changing the side chains of the conjugated polymer, but can also be entirely suppressed. The types of electronic coupling correlate with chain morphology, which is quantified by excitation polarization spectroscopy and the efficiency of interchromophoric energy transfer that is revealed by the degree of single-photon emission.

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Authors
Eder, T., Stangl, T., Gmelch, M., Remmerssen, K., Laux, D., Höger, S., Lupton, J. M., & Vogelsang, J.
Affiliations
  • University of Regensburg (DE)
  • University of Bonn (DE)
Corresponding author
Vogelsang, Jan
Venue
Nature Communications
Published
2017-11-21
Volume
8
Issue
1
Pages
1641-1641
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2770794788
Cited by
135
References
72
Citations by year
2026: 9 · 2025: 10 · 2024: 17 · 2023: 14 · 2022: 21 · 2021: 21 · 2020: 22 · 2019: 10 · 2018: 11
FWCI
8.65
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • University of Regensburg Publication Server (University of Regensburg) (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • University of Regensburg Publication Server (University of Regensburg)
Funders
  • Deutsche Forschungsgemeinschaft (GRK 1570)
  • Volkswagen Foundation
  • FP7 Ideas: European Research Council (305020)
Topics
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Photochemistry and Electron Transfer Studies
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Electronics and Photovoltaics
  • Physical Sciences › Materials Science › Materials Chemistry › Luminescence and Fluorescent Materials
Keywords
conjugated polymers, polymer aggregates, reversible switching, side-chain engineering, chain morphology, photoluminescence, vibronic coupling, single-photon emission

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