An insight into non-emissive excited states in conjugated polymers

Zhongjian Hu, Adam P. Willard, Robert J. Ono, Christopher W. Bielawski, Peter J. Rossky and David A. Vanden Bout ()
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Zhongjian Hu: Center for Nano- and Molecular Science and Technology, University of Texas at Austin
Adam P. Willard: Center for Nano- and Molecular Science and Technology, University of Texas at Austin
Robert J. Ono: Center for Nano- and Molecular Science and Technology, University of Texas at Austin
Christopher W. Bielawski: Center for Nano- and Molecular Science and Technology, University of Texas at Austin
Peter J. Rossky: Center for Nano- and Molecular Science and Technology, University of Texas at Austin
David A. Vanden Bout: Center for Nano- and Molecular Science and Technology, University of Texas at Austin

Nature Communications, 2015, vol. 6, issue 1, 1-9

Abstract: Abstract Conjugated polymers in the solid state usually exhibit low fluorescence quantum yields, which limit their applications in many areas such as light-emitting diodes. Despite considerable research efforts, the underlying mechanism still remains controversial and elusive. Here, the nature and properties of excited states in the archetypal polythiophene are investigated via aggregates suspended in solvents with different dielectric constants (ɛ). In relatively polar solvents (ɛ>∼ 3), the aggregates exhibit a low fluorescence quantum yield (QY) of 2–5%, similar to bulk films, however, in relatively nonpolar solvents (ɛ

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms9246

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DOI: 10.1038/ncomms9246

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