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Single-Molecule Studies of Electronic Energy Transfer in a Diblock Conjugated Polymer


  • We gratefully acknowledge financial support from the Basic Energy Sciences Program of the Department of Energy, the Keck Foundation, the Robert A. Welch Foundation, and SPRING. J.K.G. thanks the Petroleum Research Fund of the American Chemical Society for a fellowship. J.J.G., N.L., and J.P.F. acknowledge support from Los Alamos National Laboratory.


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Energy transfer at the interface of two dissimilar conjugated polymer chains (see picture; DMOS=2-dimethyloctylsilyl-p-phenylenevinylene; MEH=2-methoxy-5-(2′-ethylhexyloxy)-p-phenylenevinylene) has been studied using single-molecule spectroscopy. Morphological features control energy-transfer processes between the blocks and lead to strongly heterogeneous efficiencies of energy transfer.