Non‐Fullerene Acceptors: Efficient Organic Solar Cell with 16.88% Efficiency Enabled by Refined Acceptor Crystallization and Morphology with Improved Charge Transfer and Transport Properties (Adv. Energy Mater. 18/2020)

In article number 1904234, Feng Liu and co-workers report a detailed structure-performance relationship to help understand the success of Y6 non-fullerene acceptors. Through the analysis of the single crystal structure of Y6, it is found that Y6 forms a polymer-like conjugated backbone through its banana-shaped structure and π-π interactions between molecules, and forms a 2D electron transport network under the ordered arrangement of the lattice.