Charge- and energy-transfer processes at polymer/polymer interfaces: A joint experimental and theoretical study

J. J.M. Halls, J. Cornil, D. A. dos Santos, R. Silbey, D. H. Hwang, A. B. Holmes, Jean-Luc Bredas, R. H. Friend

Research output: Contribution to journalArticlepeer-review

281 Scopus citations

Abstract

When an exciton approaches the interface between two conjugated polymers, either energy or charge transfer can take place. We present a detailed experimental investigation of these processes in various binary polymer systems. The results are interpreted in the context of quantum-chemical calculations that provide estimates of the relative energies of intrachain versus interchain excited states in pairs of various PPV-related chains. In particular, we show that charge-transfer occurs at the interface between MEH-PPV and a cyano-substituted PPV derivative, whereas energy transfer takes place at the interface of PPV with the same cyano-substituted polymer.

Original languageEnglish (US)
Pages (from-to)5721-5727
Number of pages7
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume60
Issue number8
DOIs
StatePublished - Jan 1 1999

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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