Excitation Energy Transfer within Covalent Tetrahedral Perylenediimide Tetramers and Their Intermolecular Aggregates

…, CH Kim, TJ Marks, MR Wasielewski

Index: Ramanan, Charusheela; Smeigh, Amanda L.; Anthony, John E.; Marks, Tobin J.; Wasielewski, Michael R. Journal of the American Chemical Society, 2012 , vol. 134, # 1 p. 386 - 397

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Citation Number: 8

Abstract

Perylenediimides (PDIs) offer a number of attractive characteristics as alternatives to fullerenes in organic photovoltaics (OPVs), including favorable orbital energetics, high extinction coefficients in the visible spectral region, photostability, and the capacity to self- assemble into ordered nanostructures. However, energy transfer followed by charge separation in PDI assemblies must kinetically out-compete excimer formation that limits ...