Femtosecond transient absorption measurements in poly(arylenevinylene)s

I. D.W. Samuel, F. Raksi, D. D.C. Bradley, R. H. Friend, P. L. Burn, A. B. Holmes, H. Murata, T. Tsutsui, S. Saito

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    Abstract

    We compare and contrast the results of transient absorption measurements on three members of the poly(arylenevinylene) family: poly(p-phenylenevinylene), PPV; poly(2,5-dimethoxy-p-phenylene vinylene), PDMeOPV; and poly(2,5-thienylenevinylene), PTV. In PTV we observe a rapid decay of the transient signal, which we related to the low efficiency for luminescence. We observe a much longer-lived transient absorption in PPV, which we consider to arise from singlet and triplet polaron-excitons. The results in PDMeOPV suggest the possibility that bipolarons may also contribute to the transient absorption. © 1993.
    Original languageEnglish (US)
    JournalSynthetic Metals
    Volume55
    Issue number1
    DOIs
    StatePublished - Mar 15 1993

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