Sterically Engineered Molecular Alloying for Kinetic Regulation of Acceptor Crystallization Achieves 20.73% Efficiency in Ternary Organic Solar Cells
Precise control over crystallization kinetics and multi‐scale morphological evolution is crucial for achieving high‐performance organic solar cells (OSCs). Herein, we report a molecular alloying strategy by introducing a sterically hindered acceptor, L8‐Ph, into the L8‐BO matrix to construct a homogeneous alloy phase...