Maqola

Geometry design of tethered small-molecule acceptor enables highly stable and efficient polymer solar cells

Yang BaiState Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, ChinaZe ZhangState Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, ChinaQiuju ZhouState Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, ChinaHua GengAnalysis & Testing Center, Xinyang Normal University, Xinyang, Henan, 464000, ChinaQi ChenBeijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing, 100048, ChinaSeoyoung KimState Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, ChinaRui ZhangDepartment of Energy Engineering, School of Energy and Chemical Engineering, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, South KoreaCen ZhangDepartment of Physics, Biomolecular and Organic Electronics, Chemistry and Biology (IFM), Linköping University, Linköping, SE-58183, SwedenBowen ChangNational Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center for Advanced Microstructures, Nanjing University, Nanjing, 210093, ChinaShangyu LiState Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, ChinaHongyuan FuState Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, ChinaLing‐Wei XueState Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, ChinaHaiqiao WangState Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, ChinaWenbin LiBeijing Engineering Research Center for the Synthesis and Applications of Waterborne Polymers, Beijing University of Chemical Technology, Beijing, 100029, ChinaWeihua ChenCollege of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, ChinaMengyuan GaoCollege of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, ChinaLong YeSchool of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300350, ChinaYuanyuan ZhouSchool of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300350, ChinaYanni OuyangDepartment of Physics, Hong Kong Baptist University, Hong Kong, China, Smart Society Lab, Hong Kong Baptist University, Hong Kong, ChinaChunfeng ZhangDepartment of Physics, Hong Kong Baptist University, Hong Kong, China, Smart Society Lab, Hong Kong Baptist University, Hong Kong, ChinaFeng GaoNational Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center for Advanced Microstructures, Nanjing University, Nanjing, 210093, ChinaChangduk YangDepartment of Physics, Biomolecular and Organic Electronics, Chemistry and Biology (IFM), Linköping University, Linköping, SE-58183, SwedenYongfang LiDepartment of Energy Engineering, School of Energy and Chemical Engineering, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, South KoreaZhiguo ZhangBeijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China

2023en

ABI

Annotatsiya

With the power conversion efficiency of binary polymer solar cells dramatically improved, the thermal stability of the small-molecule acceptors raised the main concerns on the device operating stability. Here, to address this issue, thiophene-dicarboxylate spacer tethered small-molecule acceptors are designed, and their molecular geometries are further regulated via the thiophene-core isomerism engineering, affording dimeric TDY-α with a 2, 5-substitution and TDY-β with 3, 4-substitution on the core. It shows that TDY-α processes a higher glass transition temperature, better crystallinity relative to its individual small-molecule acceptor segment and isomeric counterpart of TDY-β, and a more stable morphology with the polymer donor. As a result, the TDY-α based device delivers a higher device efficiency of 18.1%, and most important, achieves an extrapolated lifetime of about 35000 hours that retaining 80% of their initial efficiency. Our result suggests that with proper geometry design, the tethered small-molecule acceptors can achieve both high device efficiency and operating stability.

Hali tarjima qilinmagan

Identifikatorlar

DOI: 10.1038/s41467-023-38673-5

Iqtiboslar va manbalar

2 ta iqtibos0 ta foydalanilgan manba

Koʻrsatkichlar — AkademScholar