Table 1 Optical properties of ID4F and NFRAs
From: Simple non-fused electron acceptors for efficient and stable organic solar cells
|  | λabssol (nm) | λabsfilm (nm) | λonsetfilm (nm) | Egopt (eV) | λemsol (nm) | λemfilm (nm) | SS (nm) | |
|---|---|---|---|---|---|---|---|---|
| Â | Â | Â | Â | Â | Â | Â | Sol | Film |
ID4F | 671 | 707 | 752 | 1.64 | 725 | 758 | 54 | 51 |
PTICH | 637 | 709 | 775 | 1.60 | 722 | 778 | 85 | 69 |
PTIC | 650 | 747 | 810 | 1.53 | 725 | 795 | 75 | 48 |
PTICO | 647 | 746 | 794 | 1.56 | 718 | 795 | 71 | 49 |
