Journal Article 4 charge transfer states D (donor)-Pyrene (bridge)-A (acceptor) 1 Frenkel exciton 1 Research Support, U.S. Gov't, Non-P.H.S. 1 charge generation 1 driving force 1 mehr ... electroabsorption 1 excess energy 1 exciton delocalization 1 geminate recombination 1 morphology 1 optimal tuning 1 organic electronics 1 organic photovoltaic properties 1 organic solar cells 1 polarizability 1 pyrene 1 spectroelectrochemistry 1 substituents 1 thermally activated delayed fluorescence 1 time-dependent density functional theory 1 triplet tuning 1 weniger ...