| 초록 |
Interfaces between the photoactive layers and electrodes play critical roles in controlling the performance of optoelectronic devices. Herein, we report a novel non-conjugated polymer additive (nPA), poly(2-vinylpyridine) (P2VP), for modifying the interfaces between bulk-heterojunction (BHJ) and cathode/metal oxide (MO) layers. The P2VP nPA enables remarkably enhanced power conversion efficiencies (PCEs) and ambient stability in different types of polymer solar cells (PSCs). Importantly, the interfacial engineering can be achieved during the deposition of the P2VP nPA added BHJ active layer via simple, one-step solution processing. |
