The photovoltaic parameters of devices based on PBDB-T:BZIC-2Br and PBDB-T:Y9-2Br.
| Acceptor | D:A (w/w) | Additive, vol% | Annealing, °C | V oc, V | J sc, mA cm−2 | FF, % | PCE, % |
|---|---|---|---|---|---|---|---|
| BZIC-2Br | 1 : 1.2 | CN(0.5) | 100 | 0.75 | 15.34 | 65.19 | 7.51(7.21 ± 0.3) |
| Y9-2Br | 0.84 | 21.38 | 67.11 | 12.05(11.75 ± 0.3) |