Front Cover: Charge generation in organic solar cells: Journey toward 20% power conversion efficiency

Owing to the enormous contributions of many researchers, the power conversion efficiencies of organic solar cells (OSCs) now exceed 19%. In this review (e280), a photophysicist's views of charge generation in OSCs including exciton diffusion, charge transfer at donor:acceptor interface, and long-range charge dissociation as well as future research directions for realizing further improvements are discussed.