Table 2. Optical, Electrical, and Photovoltaic Properties of Non-Fullerene Acceptors 7-48–7-61.
| NFA | original name | HOMOa (eV) | LUMOa (eV) | Egopt (eV) | donor | D:A ratio | VOC (V) | JSC(mA cm–2) | FF (%) | PCE (%) | μec(cm2 V–1 s–1) | ref. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7-48 | IDTTIC | –5.68 | –3.84 | 1.51 | PBDB-T | 1:1 | 0.92 | 17.3 | 70 | 11.2 | -/1.2 × 10–4 | (145) |
| 7-49 | C8-ITIC | –5.63 | –3.91 | 1.55 | PFBDB-T | 1:1.25 | 0.94 | 19.6 | 72 | 13.2 | -/6.9 × 10–4 | (146) |
| 7-50 | ITIC-Th | –5.66 | –3.93 | PTFB-O | 1:1.5 | 0.92 | 16.7 | 68 | 10.9 | -/4.5 × 10–4 | (147) | |
| ITIC-Th | –5.65 | –4.05b | 1.60 | P(Cl) | 1:1.25 | 0.90 | 18.6 | 68 | 11.4 | -/5.1 × 10–4 | (157) | |
| 7-51 | sp-mOEh-ITIC | –5.67 | –4.06b | 1.61 | PBDB-T | 1:1 | 0.87 | 12.1 | 61 | 6.44 | (148) | |
| 7-52 | POIT-IC | –5.57 | –3.92 | 1.58 | PM6 | 1:1 | 1.04 | 16.1 | 60 | 10.1 | 1.8 × 10–4/6.4 × 10–4 | (149) |
| 7-53 | ITIC-OE | –5.67 | –4.03 | 1.57 | PBDB-T | 1:1 | 0.85 | 14.8 | 67 | 8.50 | 4.8 × 10–4/1.2 × 10–5 | (106) |
| 7-54 | ITIC-OEG | –5.39 | –3.99 | 1.54 | PPDT2FBT | 1:1 | 0.90 | 3.56 | 49 | 1.58 | 1.9 × 10–5/- | (150) |
| 7-55 | m-ITIC | –5.68 | –3.95 | 1.59 | PBDS-T | 1:1.5 | 0.99 | 16.8 | 62 | 10.3 | (151) | |
| 7-56 | mO-ITIC | –5.50 | –3.74 | 1.63 | PTZ-DO | 1:1 | 0.92 | 15.2 | 66 | 9.28 | (152) | |
| m-ITIC-O-H | –5.25 | –3.65b | 1.60 | PBDB-T | 1:1 | 0.85 | 16.0 | 70 | 9.55 | -/9.4 × 10–6 | (153) | |
| 7-57 | m-ITIC-O-EH | –5.25 | –3.63b | 1.62 | PBDB-T | 1:1 | 0.88 | 15.9 | 68 | 9.77 | -/7.1 × 10–6 | (153) |
| 7-58 | FpO-ITIC | –5.61 | –3.72 | 1.64 | PTZ-DO | 1:1 | 0.88 | 12.6 | 61 | 6.69 | (152) | |
| 7-59 | oF-ITIC | –5.73 | –3.93 | 1.63 | PBTIBDTT | 1:1.2 | 0.94 | 13.5 | 71 | 9.01 | 3.6 × 10–4/3.8 × 10–4 | (154) |
| m-F-ITIC | –5.69 | –3.96 | 1.62 | PBDB-T | 1.3:1 | 0.88 | 15.8 | 64 | 8.90 | 9.4 × 10–5/3.7 × 10–5 | (155) | |
| 7-60 | mF-ITIC | –5.66 | –3.88 | 1.60 | PBTIBDTT | 1:1 | 0.96 | 14.8 | 67 | 9.55 | 3.0 × 10–4/3.0 × 10–4 | (154) |
| o-F-ITIC | –5.66 | –3.94 | 1.58 | PBDB-T | 1.3:1 | 0.92 | 18.1 | 67 | 11.1 | 4.8 × 10–4/4.1 × 10–4 | (155) | |
| 7-61 | ITC6-IC | –5.72 | –3.78 | 1.60 | PBDB-T | 1:1 | 0.94 | 16.2 | 71 | 10.9 | -/6.6 × 10–4 | (156) |
a
Obtained from the oxidation/reduction potential of the CV measurement if not otherwise stated.
b
HOMO/LUMO energy levels obtained from the LUMO/HOMO levels determined by CV and the optical band gap.
c
Determined via the SCLC technique from the neat acceptor/donor:acceptor blend films if not otherwise stated.