Asymmetric-Isomerization Dimer Acceptors via Modular Molecular Design Enable Highly Efficient Binary Organic Solar Cells.
Dimer acceptors are attractive for organic solar cells (OSCs) owing to their combination of stability and high efficiency, yet the efficiency of dimer-based binary devices has long stagnated below 20%. The limitation stems from weak intramolecular charge transfer (ICT) and poor locally excited/charge-transfer (LE/CT) s...