Light boosts exciton transport in organic molecular crystal, improving optoelectronic device performance

https://www.eurekalert.org/news-releases/1080197

"modifies organic semiconductor molecular crystal structure via light irradiation, enhancing exciton transport properties... exciton transport diffusion coefficient increased 3 orders magnitude (from ~10-3 cm2 s-1 to over 1 cm2 s-1), and diffusion length extended from <50 nm to nearly 1 µm... both laser and cost-effective incoherent LED irradiation induced this enhancement, with the improved transport properties persisting for months... future: resolving structural modifications' mechanistic link to transport enhancement"