Tweaks behind the rebirth of nearly discarded organic solar technologies

Science Daily  December 19, 2019 Unlike silicon solar technology, non-fullerene acceptors (NFAs) can be shaped, made semi-transparent or colored and fine-tuned to free up and move electrons to generate electricity. Researchers at Georgia Institute of Technology have modeled tiny tweaks to molecular shapes and calculated corresponding energy conversion in a common NFA electron donor/acceptor pairing. Improved performance came from tweaks to a tiny component, a methoxy group, on the acceptor, and two positions out of four possible positions it took boosted the conversion of light into electricity from 6% to 12%…read more. Open Access TECHNICAL ARTICLE