3-12-2020
Triphenylamine (TPA)/dicyanovinyl (DCV) based materials have recently attracted substantial research attention due to their unique optoelectronic properties, yet there are very few studies geared towards understanding their ultrafast photo-induced processes in solution and the corresponding correlation to the solid-state. In this paper, we investigate the mechanisms governing the excited state dynamics in TPA-T-DCV-Ph-F push-pull molecule. We show that the surprisingly short lifetime in solution (40 ps in toluene) does not prevent long exciton diffusion length in film (~16 nm), which grants applications of TPA-T-DCV-Ph-F and similar push-pull molecules in organic optoelectronic devices.
This work was published in Scientific Reports 10, 21198 (2020)