Mesoscopic order and the dimensionality of long-range resonance energy transfer in supramolecular semiconductors.

C. Daniel, F. Makereel, L.M. Herz, F.J.M. Hoeben, P. Jonkheijm, A.P.H.J. Schenning, E.W. Meijer, C. Silva

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Abstract

We present time-resolved photoluminescence measurements on two series of oligo-p-phenylenevinylene materials that self-assemble into supramolecular nanostructures with thermotropic reversibility in dodecane. One set of derivatives form chiral helical stacks, while the second set form less organized "frustrated" stacks. Here we study the effects of supramolecular organization on the resonance energy transfer rates. We measure these rates in nanoassemblies formed with mixed blends of oligomers and compare them with the rates predicted by Förster theory. Our results and analysis show that control of supramolecular order in the nanometer length scale has a dominant effect on the efficiency and dimensionality of resonance energy transfer.
Original languageEnglish
Pages (from-to)104701-104706
JournalJournal of Chemical Physics
Volume129
Issue number10
DOIs
Publication statusPublished - 2008

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