Статья

A New Polymer Donor Enables Binary All‐Polymer Organic Photovoltaic Cells with 18% Efficiency and Excellent Mechanical Robustness

Jingwen WangBeijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. ChinaYong CuiBeijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. ChinaYe XuBeijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. ChinaKaihu XianSchool of Materials Science and Engineering Tianjin Key Laboratory of Molecular Optoelectronic Sciences Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300350 P. R. ChinaPengqing BiBeijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. ChinaZhihao ChenSchool of Physics State Key Laboratory of Crystal Materials Shandong University Shandong 250100 P. R. ChinaKangkang ZhouSchool of Materials Science and Engineering Tianjin Key Laboratory of Molecular Optoelectronic Sciences Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300350 P. R. ChinaLijiao MaBeijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. ChinaTao ZhangBeijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. ChinaYi YangBeijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. ChinaYunfei ZuBeijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. ChinaHuifeng YaoBeijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. ChinaXiaotao HaoSchool of Physics State Key Laboratory of Crystal Materials Shandong University Shandong 250100 P. R. ChinaLong YeSchool of Materials Science and Engineering Tianjin Key Laboratory of Molecular Optoelectronic Sciences Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300350 P. R. ChinaJianhui HouBeijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China

2022en

ABI

Аннотация

The development of polymerized small-molecule acceptors has boosted the power conversion efficiencies (PCEs) of all-polymer organic photovoltaic (OPV) cells to 17%. However, the polymer donors suitable for all-polymer OPV cells are still lacking, restricting the further improvement of their PCEs. Herein, a new polymer donor named PQM-Cl is designed and its photovoltaic performance is explored. The negative electrostatic potential and low average local ionization energy distribution of the PQM-Cl surface enable efficient charge generation and transfer process. When blending with a well-used polymer acceptor, PY-IT, the PQM-Cl-based devices deliver an impressive PCE of 18.0% with a superior fill factor of 80.7%, both of which are the highest values for all-polymer OPV cells. The relevant measurements demonstrate that PQM-Cl-based films possess excellent mechanical and flexible properties. As such, PQM-Cl-based flexible photovoltaic cells are fabricated and an excellent PCE of 16.5% with high mechanical stability is displayed. These results demonstrate that PQM-Cl is a potential candidate for all-polymer OPV cells and provide insights into the design of polymer donors for high-efficient all-polymer OPV cells.

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Идентификаторы

DOI: 10.1002/adma.202205009

Цитирования и источники

Цитирований: 3Использованных источников: 0

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