High‐Performance Noncovalently Fused‐Ring Electron Acceptors for Organic Solar Cells Enabled by Noncovalent Intramolecular Interactions and End‐Group Engineering
-
- Xin Zhang
- College of Materials Science and Opto-Electronic Technology &, Center of Materials Science and Optoelectronics Engineering &, CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 P. R. China
-
- Linqing Qin
- College of Materials Science and Opto-Electronic Technology &, Center of Materials Science and Optoelectronics Engineering &, CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 P. R. China
-
- Jianwei Yu
- Department of Physics, Chemistry and Biology (IFM) Linköping University 58183 Linköping Sweden
-
- Yuhao Li
- Department of Physics The Chinese University of Hong Kong New Territories Hong Kong 999077 P. R. China
-
- Yanan Wei
- College of Materials Science and Opto-Electronic Technology &, Center of Materials Science and Optoelectronics Engineering &, CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 P. R. China
-
- Xingzheng Liu
- College of Materials Science and Opto-Electronic Technology &, Center of Materials Science and Optoelectronics Engineering &, CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 P. R. China
-
- Xinhui Lu
- Department of Physics The Chinese University of Hong Kong New Territories Hong Kong 999077 P. R. China
-
- Feng Gao
- Department of Physics, Chemistry and Biology (IFM) Linköping University 58183 Linköping Sweden
-
- Hui Huang
- College of Materials Science and Opto-Electronic Technology &, Center of Materials Science and Optoelectronics Engineering &, CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 P. R. China
抄録
<jats:title>Abstract</jats:title><jats:p>Noncovalently fused‐ring electron acceptors (NFREAs) have attracted much attention in recent years owing to their advantages of simple synthetic routes, high yields and low costs. However, the efficiencies of NFREAs based organic solar cells (OSCs) are still far behind those of fused‐ring electron acceptors (FREAs). Herein, a series of NFREAs with S⋅⋅⋅O noncovalent intramolecular interactions were designed and synthesized with a two‐step synthetic route. Upon introducing π‐extended end‐groups into the backbones, the electronic properties, charge transport, film morphology, and energy loss were precisely tuned by fine‐tuning the degree of multi‐fluorination. As a result, a record PCE of 14.53 % in labs and a certified PCE of 13.8 % for NFREAs based devices were obtained. This contribution demonstrated that combining the strategies of noncovalent conformational locks and π‐extended end‐group engineering is a simple and effective way to explore high‐performance NFREAs.</jats:p>
収録刊行物
-
- Angewandte Chemie
-
Angewandte Chemie 133 (22), 12583-12589, 2021-04-20
Wiley