Macromolecular Rapid Communications

Cover image for Vol. 37 Issue 20

30_9-10b/2009Macromol. Rapid Commun. 9–10/2009

Back Cover: Heterojunctions between two dissimilar organic materials are the active sites for excited state formation in organic light emitting diodes (OLEDs) and excited state dissociation in organic photovoltaics (OPVs). The offsets in frontier orbital energies help to determine the excess free energy available for emissive state creation in OLEDs, or the driving force for photocurrent production, and the upper limit to the open-circuit photopotential in OPVs. Further details can be found in the article by N. R. Armstrong,* W. Wang, D. M. Alloway, D. Placencia, E. Ratcliff, and M. Brumbach on page 717.

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