1. INTRODUCTION Porphyrins (Ps) 1, 2 and their best known synthetic analogues, the
phthalocyanines (Pcs; 2− 10 Chart 1) represent one of the most widely studied macrocyclic …

Exciton generation, migration, and dissociation are key processes that play a central role in
the design and operation of many organic optoelectronic devices. In organic photovoltaic …

In order to increase the power conversion efficiency of organic solar cells, their absorption
spectrum should be broadened while maintaining efficient exciton harvesting. This requires …

To explore the potential of ternary blend bulk heterojunction (BHJ) photovoltaics as a
general platform for increasing the attainable performance of organic solar cells, a model …

Photoconversion in planar-heterojunction organic photovoltaic cells (OPVs) is limited by a
short exciton diffusion length (LD) that restricts migration to the dissociating electron …

Six experimental methods have been used to investigate the exciton diffusion length in
materials with systematic chemical modifications. We find that exciton diffusion length …

We visualize exciton diffusion in rubrene single crystals using localized photoexcitation and
spatially resolved detection of excitonic luminescence. We show that the exciton mobility in …

The ability to engineer excitonic energy transfer processes has played an important role in
realizing high efficiency optoelectronic devices based on organic semiconductors. Energy …

Exciton diffusion in organic semiconductors is crucial to the performance of organic solar
cells. Here, we measured the exciton diffusion length in poly (3-hexylthiophene)(P3HT) as a …

In paper I [NC Giebink, GP Wiederrecht, MR Wasielewski, and SR Forrest, Phys. Rev. B 82,
155305 (2010) 10.1103/PhysRevB. 82.155305], we proposed that current transport in a …