Modeling, Computation, Nonlinerarity, Randomness and Waves Seminar

The charge-transfer states formed at the donor-acceptor interfaces mediate exciton dissociation, charge generation, and charge recombination processes in organic electronic devices such as solar cells and  light emitting diodes. Here, we assess the current understanding of charge-transfer states and describe how factors such as electronic-state hybridization, electronic polarization, interface geometry, static and dynamic disorders affect their nature. The influence of these factors on radiative and non-radiative geminate recombination processes will be then illustrated. New features of the charge-transfer states, which emerged from the recent development of organic solar cells based on non-fullerene acceptors and exciplex based organic light emitting diodes exploiting the thermally activated delayed fluorescence effect  will be also discussed.

Place: Hybrid: Math, 402 and Zoom https://arizona.zoom.us/j/85014462076  Password:  “arizona” (all lower case)