Enhancing Photon Utilization Efficiency for High‐Performance Organic Photovoltaic Cells via Regulating Phase‐Transition Kinetics
Chinese Academy of Sciences · Beijing National Laboratory for Molecular Sciences · +5 more institutions
Abstract
Efficient photon utilization is key to achieving high-performance organic photovoltaic (OPV) cells. In this study, a multiscale fibril network morphology in a PBQx-TCl:PBDB-TF:eC9-2Cl-based system is constructed by regulating donor and acceptor phase-transition kinetics. The distinctive phase-transition process and crystal size are systematically investigated. PBQx-TCl and eC9-2Cl form fibril structures with diameters of ≈25 nm in ternary films. Additionally, fine fibrils assembled by PBDB-TF are uniformly distributed over the fibril networks of PBQx-TCl and eC9-2Cl. The ideal multiscale fibril network morphology enables the ternary system to achieve superior charge transfer and transport processes compared to…
Citation impact
- FWCI
- 22.18
- Percentile
- 100%
- References
- 68
Authors
12- PBPengqing Bi
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry
- JWJianqiu Wang
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry
- YCYong CuiCorresponding
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry
- JZJianqi Zhang
National Center for Nanoscience and Technology
- TZTao Zhang
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
- Materials science
- Energy conversion efficiency
- Tandem
- Ternary operation
- Kinetics
- Photovoltaic system
- Organic solar cell
- Phase (matter)
- Affordable and clean energy