Perylene diimide-benzodithiophene D-A copolymers as acceptor in all-polymer solar cells
Zhang, Y; Guo, Xia; Su, W; Guo, B; Xu, Z; Zhang, M; Li, Y
| HERO ID | 3576079 |
|---|---|
| In Press | No |
| Year | 2017 |
| Title | Perylene diimide-benzodithiophene D-A copolymers as acceptor in all-polymer solar cells |
| Authors | Zhang, Y; Guo, Xia; Su, W; Guo, B; Xu, Z; Zhang, M; Li, Y |
| Journal | Organic Electronics |
| Volume | 41 |
| Page Numbers | 49-55 |
| Abstract | Two n-type conjugated D-A copolymers with perylene diimide (PDI) as acceptor unit and benzodithiophene (BDT) as donor unit, P(PDI-BDT-Ph) and P(PDI-BDT-Th), were synthesized and applied as electron acceptor in all-polymer solar cells (all-PSCs). P(PDI-BDT-Ph) and P(PDI-BDT-Th) films exhibit similar absorption spectra in the visible region with optical bandgap (E-g) of 1.65 eV and 1.55 eV respectively, and the identical LUMO level of -3.89 eV. The all-PSCs based on P(PDI-BDT-Ph) as acceptor and PTB7-Th as donor demonstrated a power conversion efficiency (PCE) of 4.31% with a short-circuit current density (J(sc)) of 11.94 mA cm(-2), an open-circuit voltage (V-oc) of 0.81 V, and a fill factor (FF) of 44.49%. By contrast, the corresponding all-PSCs with P(PDI-BDT-Th) as acceptor showed a relative lower PCE of 3.58% with a Jsc of 11.36 mA cm(-2), V-oc of 0.79 V, and FF of 40.00%. (C) 2016 Elsevier B.V. All rights reserved. |
| Doi | 10.1016/j.orgel.2016.11.038 |
| Wosid | WOS:000390586300007 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Keyword | Perylene diimide; n-type conjugated polymers; Polymer acceptors; All-polymer solar cells |