Cited by 553Organic Light-Emitting Diodes ResearchLuminescence and Fluorescent MaterialsPhotochemistry and Electron Transfer Studies

The energy gap law for triplet states in Pt-containing conjugated polymers and monomers

Wilson, Joanne S., Chawdhury, Nazia, Al-Mandhary, Muna R. A., Younus, M., Khan, Muhammad S., Raithby, Paul R., Köhler, Anna, Friend, Richard H.·2001·Journal of the American Chemical Society

Abstract

The energy gap law established for aromatic hydrocarbons and rare earth ions relates the nonradiative decay rate to the energy gap of a transition through a multiphonon emission process. We show that this energy gap law can be applied to the phosphoresce of a series of conjugated polymers and monomers for which the radiative decay rate has been enhanced through incorporation of a heavy metal. We find that the nonradiative decay rate from the triplet state T(1) increases exponentially with decreasing T(1)-S(0) gap for the polymers and monomers at 300 and 20 K. Comparison of the nonradiative decay of polymers with that of their corresponding monomers highlights the role of electron-lattice coupling.

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Crossref · 10.1021/ja010986s

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  • The difficulty in constructing NIR emission lies in the rapid internal conversion between low-energy-level S1 and S0, explored in light of the energy-gap law.

    “The difficulty in constructing NIR emission lays in the rapid internal conversion between low-energy-level S1 and S0, which was explored in light of energy-gap law.”

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Authors
Wilson, J. S., Chawdhury, N., Al-Mandhary, M. R. A., Younus, M., Khan, M. S., Raithby, P. R., Köhler, A., & Friend, R. H.
Affiliations
University of Cambridge (GB)
Venue
Journal of the American Chemical Society
Published
2001-08-24
Volume
123
Issue
38
Pages
9412-9417
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W1987620130
Cited by
553
References
34
Citations by year
2026: 26 · 2025: 30 · 2024: 38 · 2023: 28 · 2022: 23 · 2021: 29 · 2020: 24 · 2019: 30 · 2018: 32 · 2017: 27 · 2016: 32 · 2015: 24 · 2014: 30 · 2013: 13 · 2012: 13
FWCI
18.33
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the American Chemical Society (publishedVersion)
  • PubMed (publishedVersion)
  • publish.UP (University of Potsdam) (submittedVersion)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Light-Emitting Diodes Research
  • Physical Sciences › Materials Science › Materials Chemistry › Luminescence and Fluorescent Materials
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Photochemistry and Electron Transfer Studies
Keywords
energy gap law, triplet state, phosphorescence, conjugated polymers, conjugated monomers, heavy metal doping, nonradiative decay, multiphonon emission, electron-lattice coupling, radiative decay rate

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