Journal Article organic semiconductors J-aggregates Research Support, Non-U.S. Gov't additive effects charge recombination charge separation charge transport charge trapping evaporation rates exciton scissoring high boiling points hydrogen indacenodithiophenes nanoparticles narrow absorption nonfullerene acceptors organic field-effect transistors organic image sensors organic solar cells perfluoroarenes photocatalysts photomultiplication photophysics quinoidal materials solar cells solar fuels spin-coating trap assisted recombination