Exciton dynamics are important for energy transfer in both natural (photosynthetic) and man-made (organic photovoltaic) materials. The potential role of quantum coherence in influencing the transport of excitation has received a lot of attention, particularly in the biological arena, but experimental studies of conjugated polymers have reported signals that have also indicated evidence of coherence in these systems.  In this presentation, quantum dynamics simulations of exciton dynamics in a detailed model of the polymer MEH-PPV will be discussed†.  Comparison with experiment indicates reproduction of the data, allowing a detailed analysis of the origins of observed coherence and, in addition,  a description of the mechanism of exciton diffusion in this class of polymer. <br/><br/>† In collaboration with Dr. Atsushi Yamada (Nagoya University), Prof. Adam P. Willard (M.I.T.), and supported by the National Science Foundation.<br/>

Quantum simulation of coherent exciton dynamics in conjugated systems

249th National Meeting (2015)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.