 DMTPA-PDI3 is a novel star-shaped electron acceptor derived from a planar dimethylmethylene bridge triphenylamine core with three acetylene-linked parylene diamides, PDI. This compound has been used in organic solar cells, OSCs, where it has shown improved performance compared to other non-foolerene acceptors. The compound's lower intramolecular twist allows for greater pi electron delocalization, resulting in increased spectral absorption and a higher lumo energy level. This leads to better charge carrier mobility and higher power conversion efficiencies. Additionally, the compound's low intramolecular aggregation results in uniform nanoparticle networks, which further enhance device performance. This article was authored by Yu Xiong, Bo Wu, Xiao Yan Zheng, and others.