Illuminating how solvent additives improve efficiency in polymer solar cells

https://phys.org/news/2022-01-illuminating-solvent-additives-efficiency-polymer.html

"PC-AFM is an advanced microscopy technique that allows photocurrents to be visualized with nanometer-scale resolution. The researchers found that trace solvent additives improved the power conversion and photocurrent density of an all-polymer blend solar cell by a factor of up to ~3 by enhancing the ordering and crystallization of the polymer microstructure in the solar cell without damaging the phase-separated structure"