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Triplet emission from π-conjugated polymers

Authors

  • Dr. Bai Xu,

    1. Department of Chemistry, Simon Fraser University Burnaby, B. C. V5A 1S6 (Canada)
    Current affiliation:
    1. Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 1A1 (Canada)
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  • Prof. Steven Holdcroft

    Corresponding author
    1. Department of Chemistry, Simon Fraser University Burnaby, B. C. V5A 1S6 (Canada)
    • Department of Chemistry, Simon Fraser University Burnaby, B. C. V5A 1S6 (Canada)
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Abstract

The triplet state in π-conjugated polymers is difficult to detect owing to the absence of phosphorescence. However applications of electroluminescence from π-conjugated polymers have made a detailed understanding of these photophysical and photochemical processes essential. The role of the triplet state in polythiophenes is explored. Experimental evidence for the existence of the triplet state is presented, and its importance for estimates of the electron-electron Coulombic interaction discussed.

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