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

J. S. Wilson; N. Chawdhury; M. R.A. Al-Mandhary; M. Younus; M. S. Khan; P. R. Raithby; A. Köhler; R. H. Friend

doi:10.1021/ja010986s

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

J. S. Wilson, N. Chawdhury, M. R.A. Al-Mandhary, M. Younus, M. S. Khan, P. R. Raithby, A. Köhler^*, R. H. Friend

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

484 Citations (Scopus)

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 T₁ increases exponentially with decreasing T₁-S₀ 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.

Original language	English
Pages (from-to)	9412-9417
Number of pages	6
Journal	Journal of the American Chemical Society
Volume	123
Issue number	38
DOIs	https://doi.org/10.1021/ja010986s
Publication status	Published - Sept 26 2001

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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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 T1 increases exponentially with decreasing T1-S0 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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T1 - The energy gap law for triplet states in pt-containing conjugated polymers and monomers

AU - Wilson, J. S.

AU - Chawdhury, N.

AU - Al-Mandhary, M. R.A.

AU - Younus, M.

AU - Khan, M. S.

AU - Raithby, P. R.

AU - Köhler, A.

AU - Friend, R. H.

PY - 2001/9/26

Y1 - 2001/9/26

N2 - 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 T1 increases exponentially with decreasing T1-S0 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.

AB - 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 T1 increases exponentially with decreasing T1-S0 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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The energy gap law for triplet states in pt-containing conjugated polymers and monomers

Abstract

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