Abstract
Two novel non-fullerene acceptors, SN6IC and SN6IC-4F, based on an S,N-heteroacene backbone were designed and synthesized. The cyclopentadiene fragments of commonly used acceptors were replaced with pyrrole rings to improve the electron-donating ability to increase the energy levels of the molecules. Both acceptors match well with the absorption and energy levels of the polymer donor PBDB-T, and PBDB-T:SN6IC-4F-based solar cells showed an excellent power conversion efficiency of 13.2%, with a relatively small VOC loss of 0.54 eV. This study proves that the introduction of a nitrogen atom to replace the sp3-hybridized carbon in the fused ring is very effective for making highly efficient NFAs to further improve the performance of organic solar cells.
| Original language | English |
|---|---|
| Pages (from-to) | 5429-5434 |
| Number of pages | 6 |
| Journal | Chemistry of Materials |
| Volume | 30 |
| Issue number | 15 |
| DOIs | |
| State | Published - 14 Aug 2018 |
| Externally published | Yes |
Fingerprint
Dive into the research topics of 'Highly Efficient Organic Solar Cells Based on S,N-Heteroacene Non-Fullerene Acceptors'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver