A strategy to maximize photocurrent in organic photovoltaics by suppressing recombination loss

https://techxplore.com/news/2022-12-strategy-maximize-photocurrent-photovoltaics-suppressing.html

"longer exciton diffusion lengths to make PMHJ films, in which donor and acceptor show larger domain size and more distinct phase separation... limit chances for separated electrons and holes to reencounter in OPVs through reduced donor:acceptor interfaces... more opportunities for collection by electrodes to generate electricity... high power conversion efficiencies of 18–19%... T1 concentration in devices composed of identical materials can be simply altered through device engineering strategy"