Dispersion effect of chlorination induced intermolecular stacking optimization of small-molecule acceptor for high-performance organic solar cells

Key Points

• The polarizable dispersion effect in chlorinated compounds enhances intermolecular interactions significantly.
• Cl-containing small-molecule acceptors showed improved performance in organic solar cells compared to their non-chlorinated counterparts.
• The study revealed underlying mechanisms that can lead to design improvements in future solar cell materials.
• Understanding the chlorination effect may point to new pathways for optimizing organic solar cell efficiency.