Impact of the interfacial nanostructures on the electronic processes in organic solar cells

After a brief description of the optical and electronic processes that take place in a solid-state organic solar cell [1], we turn our attention to recent theoretical advances regarding the determination of the energetics and dynamics at the organic-organic, donor-acceptor interfaces [2]. We underline the complexity of the processes taking place at the nanoscale [3] and highlight the balance that needs to be found for the optimization of materials parameters in terms of photovoltaic performance. \\[4pt] [1] J.L. Bredas, J. Norton, J. Cornil, and V. Coropceanu, \textit{Acc. Chem. Res.} \textbf{42}, 1691 (2009).\\[0pt] [2] Y.Yi, V. Coropceanu, and J.L. Bredas, \textit{J. Amer. Chem. Soc.} \textbf{131}, 5131 (2009); \textit{ibid}., \textit{J. Mater. Chem.} (2010).\\[0pt] [3] M. Linares \textit{et al.}, \textit{J. Phys. Chem. C} \textbf{114}, 3215 (2010).