Table 1. Photovoltaic performance of inverted organic solar cells with different FTCEs.
| Electrode type | Jsc (mA cm−2) | Integrated Jsc (mA cm−2) | Voc (V) | FF (%) | Rs (Ω cm2) | Average PCE (%) | Best PCE (%) |
|---|---|---|---|---|---|---|---|
| ITO 120 nm/ZnO | 17.10±0.34 | 17.00±0.25 | 0.78±0.01 | 51.66±0.59 | 7.62±0.35 | 6.91±0.10 | 7.01 |
| ZnO/Cu 6.5 nm/ZnO | 14.65±0.21 | 14.23±0.34 | 0.76±0.01 | 55.59±0.42 | 6.71±0.12 | 6.20±0.02 | 6.22 |
| ZnO/Cu 8.0 nm/ZnO | 15.60±0.14 | 15.50±0.21 | 0.77±0.01 | 55.54±0.49 | 6.21±0.19 | 6.64±0.10 | 6.74 |
| ZnO/Cu(O=5.0%) 5.0 nm/ZnO | 16.42±0.08 | 16.33±0.10 | 0.78±0.01 | 55.65±0.33 | 5.11±1.32 | 7.13±0.05 | 7.18 |
| ZnO/Cu(O=5.0%) 7.0 nm/ZnO | 16.52±0.22 | 16.47±0.10 | 0.78±0.01 | 57.91±0.10 | 4.82±1.71 | 7.50±0.09 | 7.65 |
FF, fill factor; FTCE, flexible transparent conducting electrode; ITO, indium tin oxide; Jsc, short-circuit current density; PCE, power conversion efficiency; Rs, series resistance; Voc, open-circuit voltage; ZnO, zinc oxide.
Each parameter was calculated from an average value of five solar cells fabricated on each electrode type. Error bars represent the s.d.