Suppressing Aggregation and Acceptor Degradation via Cathode Interlayer Doping toward High-Performance Organic Solar Cells

We introduce 1-hydroxybenzotriazole (HOBT) into the PDINN cathode interlayer as a dual-functional additive. Hydrogen bonding suppresses PDINN self-aggregation, while the benzotriazole skeleton provides UV protection against amineinduced degradation. The resulting...