Achieving Over 15% Efficiency in Organic Photovoltaic Cells via Copolymer Design
Chinese Academy of Sciences · Beijing National Laboratory for Molecular Sciences · +3 more institutions
Abstract
Ternary blending and copolymerization strategies have proven advantageous in boosting the photovoltaic performance of organic solar cells. Here, 15% efficiency solar cells using copolymerization donors are demonstrated, where the electron-withdrawing unit, ester-substituted thiophene, is incorporated into a PBDB-TF polymer to downshift the molecular energy and broaden the absorption. Copolymer-based solar cells suitable for large-area devices can be fabricated by a blade-coating method from a nonhalogen and nonaromatic solvent mixture. Although ternary solar cells can achieve comparable efficiencies, they are not suitable for environment-friendly processing conditions and show relatively low photostability…
Citation impact
- FWCI
- 41.65
- Percentile
- 100%
- References
- 50
Authors
11- YCYong Cui
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, University of Chinese Academy of Sciences
- HYHuifeng YaoCorresponding
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry
- LHLing Hong
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, University of Chinese Academy of Sciences
- TZTao Zhang
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry
- YXYe Xu
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, University of Chinese Academy of Sciences
Topics & keywords
- Copolymer
- Materials science
- Photovoltaic system
- Ternary operation
- Organic solar cell
- Polymer
- Thiophene
- Chemical engineering