Design, Synthesis, and Photovoltaic Characterization of a Small Molecular Acceptor with an Ultra‐Narrow Band Gap
Chinese Academy of Sciences · Beijing National Laboratory for Molecular Sciences · +3 more institutions
Abstract
Abstract The design of narrow band gap (NBG) donors or acceptors and their application in organic solar cells (OSCs) are of great importance in the conversion of solar photons to electrons. Limited by the inevitable energy loss from the optical band gap of the photovoltaic material to the open‐circuit voltage of the OSC device, the improvement of the power conversion efficiency (PCE) of NBG‐based OSCs faces great challenges. A novel acceptor–donor–acceptor structured non‐fullerene acceptor is reported with an ultra‐narrow band gap of 1.24 eV, which was achieved by an enhanced intramolecular charge transfer (ICT) effect. In the OSC device, despite a low energy loss of 0.509 eV, an impressive short‐circuit…
Citation impact
- FWCI
- 72.78
- Percentile
- 100%
- References
- 44
Authors
6- HYHuifeng Yao
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, University of Chinese Academy of Sciences
- YCYong Cui
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, University of Chinese Academy of Sciences
- RYRunnan Yu
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, University of Chinese Academy of Sciences
- BGBowei Gao
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, University of Chinese Academy of Sciences
- HZHao Zhang
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, University of Chinese Academy of Sciences
Topics & keywords
- Band gap
- Acceptor
- Materials science
- Organic solar cell
- Optoelectronics
- Photovoltaic system
- Energy conversion efficiency
- Open-circuit voltage
- Affordable and clean energy