Non-Fullerene Polymer Solar Cells Based on Alkylthio and Fluorine Substituted 2D-Conjugated Polymers Reach 9.5% Efficiency
University of Chinese Academy of Sciences · Institute of Chemistry · +4 more institutions
Abstract
Non-fullerene polymer solar cells (PSCs) with solution-processable n-type organic semiconductor (n-OS) as acceptor have seen rapid progress recently owing to the synthesis of new low bandgap n-OS, such as ITIC. To further increase power conversion efficiency (PCE) of the devices, it is of a great challenge to develop suitable polymer donor material that matches well with the low bandgap n-OS acceptors thus providing complementary absorption and nanoscaled blend morphology, as well as suppressed recombination and minimized energy loss. To address this challenge, we synthesized three medium bandgap 2D-conjugated bithienyl-benzodithiophene-alt-fluorobenzotriazole copolymers J52, J60, and J61 for the application…
Citation impact
- FWCI
- 93.92
- Percentile
- 100%
- References
- 56
Authors
8- HBHaijun BinCorresponding
University of Chinese Academy of Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences
- ZZZhiguo Zhang
Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences
- LGLiang Gao
University of Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences
- SCShanshan Chen
Ulsan National Institute of Science and Technology
- ZLZhong Lian
Chinese Academy of Sciences, Institute of Chemistry, Beijing National Laboratory for Molecular Sciences
Topics & keywords
- Chemistry
- Fullerene
- Conjugated system
- Polymer
- Fluorine
- Polymer solar cell
- Polymer chemistry
- Chemical engineering
- Affordable and clean energy