The relative molecular orientation at the donor–acceptor interface is a key factor that determines photocurrent generation in organic photovoltaics. The effects of this orientation on the photocurrent generation are investigated using bilayer devices with a sharp and unmixed donor–acceptor heterojunction. Improved exciton diffusion and charge separation are observed at the face-on donor–acceptor interface than at the edge-on interface
- Hansol Lee
- Dongki Lee
- Kilwon Cho
