Acceptor energy level control of charge photogeneration in organic donor/acceptor blends

Safa Shoaee, Tracey M. Clarke, Chun Huang, Stephen Barlow, Seth R. Marder, Martin Heeney, Iain Mcculloch, James R. Durrant

Research output: Contribution to journalArticlepeer-review

115 Scopus citations


In this paper we focus upon the role of interfacial energetics in influencing the separation of charge transfer states into dissociated charge carriers in organic donor/acceptor blend films. In particular, we undertake transient optical studies of films comprising regioregular poly(3- hexylthiophene) (P3HT) blended with a series of perylene-3,4:9,10- tetracarboxydiimide (PDI) electron acceptors. For this film series, we observe a close correlation between the PDI electron affinity and the efficiency of charge separation. This correlation is discussed in the context of studies of charge photogeneration for other organic donor/acceptor blend films, including other polymers, blend compositions, and the widely used electron acceptor 3′-phenyl-3′H-cyclopropa[1,9](C60-Ih)[5,6] fullerene-3′-butanoic acid methyl ester (PCBM).

Original languageEnglish (US)
Pages (from-to)12919-12926
Number of pages8
JournalJournal of the American Chemical Society
Issue number37
StatePublished - Sep 22 2010

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry


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