| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1440276 | Synthetic Metals | 2016 | 9 Pages |
•The effective charge separation process observation due to intramolecular electron transfer in donor-acceptor block copolymer.•A competition for the PPerAcr acceptor in BCPs from other effective fullerene derivatives used as additives to BCPs has not been observed.•b-PPerAcr anion radical registration and description by W-band ESR.•The confirmation of insignificant b-PPerAcr block π-stacks ordering in solar cells film by W-band ESR.
Light-induced X,W-band Electron Spin Resonance (LESR) study of double-crystalline donor-acceptor block copolymers (BCPs) comprised of poly-3-hexylthiophene as the donor and poly-perylene bisimide acrylate as the acceptor segments is presented. It is suggested that, while the intrinsic light-induced charge separation efficiency in the BCPs registered by LESR could be more efficient than in bulk heterojunction solar cells based on the P3HT/PCBM blends, the photovoltaic performance of the BCPs is limited significantly by the incorrect orientation of crystalline π-stack morphology of (poly-perylene bisimide acrylate) domains.
