The singlet-triplet energy gap in organic and Pt-containing phenylene ethynylene polymers and monomers

A. Köhler*, J. S. Wilson, R. H. Friend, M. K. Al-Suti, M. S. Khan, A. Gerhard, H. Bässler

*Corresponding author for this work

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142 Citations (Scopus)

Abstract

The singlet S1-triplet T1 energy gap in organic and Pt-containing phenylene ethynylene polymers and monomers was analyzed. Direct measurements of fluorescence and phosphorescence were used to determine the S1 and T1 energies in a series of conjugated polymers. The spin orbit coupling increased with the inclusion of platinum, so T1 state emission was easier to detect. For the platinum containing polymer series and for the all-organic polymers, results showed the T1 state to be at a constant separation of 0.7±0.1 eV below the singlet S1 state.

Original languageEnglish
Pages (from-to)9457-9463
Number of pages7
JournalJournal of Chemical Physics
Volume116
Issue number21
DOIs
Publication statusPublished - Jun 1 2002

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Köhler, A., Wilson, J. S., Friend, R. H., Al-Suti, M. K., Khan, M. S., Gerhard, A., & Bässler, H. (2002). The singlet-triplet energy gap in organic and Pt-containing phenylene ethynylene polymers and monomers. Journal of Chemical Physics, 116(21), 9457-9463. https://doi.org/10.1063/1.1473194