Nature-Inspired Redox Shuttle with Regenerable Antioxidant for Efficient All-Perovskite Tandem Solar CellsOA
Pb-Sn mixed perovskite solar cells(PSCs)are crucial components for realizing efficient all-perovskite tandem devices.However,their efficiency and stability are severely limited by oxidative degradation(Sn^(4+)formation)and metallic defects(Sn^(0)/Pb^(0)).In addition,the rapid and uncontrolled Sn^(2+)nucleation kinetics result in nonuniform crystallization.Herein,we introduce a natural redox shuttle glutathione(GSH)in Pb-Sn mixed PSCs,achieving regenerable antioxidation and crystallization regulation simultaneously.The reversible redox reactions between GSH and glutathione disulfide(GSSG)enable the self-healing of Sn^(4+)and Sn^(0)/Pb^(0)impurities,creating a regenerable antioxidation protective shell at the perovskite interfaces.Meanwhile,the strong coordination between GSH and perovskite regulates the crystallization process,optimizing the nucleation and crystallization kinetics.Furthermore,the GSH incorporation creates a high-quality charge separation junction at the perovskite/hole transport layer,facilitating carrier separation and extraction.The optimized Pb-Sn PSCs exhibit impressive power conversion efficiencies(PCEs)of up to 23.71%.The champion all-perovskite tandem PSCs with GSH achieve a PCE of 28.49%and retain 90%of the initial PCE after 560 h of continuous illumination.This work establishes a new nature-inspired redox shuttling strategy and elucidates its working mechanism,advancing the development of efficient and stable all-perovskite tandem solar cells.
Rui Meng;Liming Du;Can Li;Zhi Wan;Jishan Shi;Yueying Zhang;Wenfeng Liu;Chongyang Zhi;Chunmei Jia;Lili Tan;Chuanxiao Xiao;Xian-Zong Wang;Lin Song;Xingyu Gao;Zhen Li
Shenzhen Research Institute of Northwestern Polytechnical University,Sanhang Science&Technology Building,No.45th,Gaoxin South 9th Road,Nanshan District,Shenzhen City 518057,People’s Republic of China State Key Laboratory of Solidification Processing,Center for Nano Energy Materials,School of Materials Science and Engineering,Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU),Xi’an 710072,People’s Republic of ChinaShenzhen Research Institute of Northwestern Polytechnical University,Sanhang Science&Technology Building,No.45th,Gaoxin South 9th Road,Nanshan District,Shenzhen City 518057,People’s Republic of China State Key Laboratory of Solidification Processing,Center for Nano Energy Materials,School of Materials Science and Engineering,Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU),Xi’an 710072,People’s Republic of ChinaShenzhen Research Institute of Northwestern Polytechnical University,Sanhang Science&Technology Building,No.45th,Gaoxin South 9th Road,Nanshan District,Shenzhen City 518057,People’s Republic of China State Key Laboratory of Solidification Processing,Center for Nano Energy Materials,School of Materials Science and Engineering,Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU),Xi’an 710072,People’s Republic of ChinaShenzhen Research Institute of Northwestern Polytechnical University,Sanhang Science&Technology Building,No.45th,Gaoxin South 9th Road,Nanshan District,Shenzhen City 518057,People’s Republic of China State Key Laboratory of Solidification Processing,Center for Nano Energy Materials,School of Materials Science and Engineering,Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU),Xi’an 710072,People’s Republic of ChinaState Key Laboratory of Solidification Processing,Center for Nano Energy Materials,School of Materials Science and Engineering,Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU),Xi’an 710072,People’s Republic of ChinaNingbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,People’s Republic of ChinaState Key Laboratory of Solidification Processing,Center for Nano Energy Materials,School of Materials Science and Engineering,Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU),Xi’an 710072,People’s Republic of ChinaState Key Laboratory of Solidification Processing,Center for Nano Energy Materials,School of Materials Science and Engineering,Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU),Xi’an 710072,People’s Republic of ChinaState Key Laboratory of Solidification Processing,Center for Nano Energy Materials,School of Materials Science and Engineering,Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU),Xi’an 710072,People’s Republic of ChinaState Key Laboratory of Solidification Processing,Center for Nano Energy Materials,School of Materials Science and Engineering,Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU),Xi’an 710072,People’s Republic of ChinaNingbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,People’s Republic of China Ningbo New Materials Testing and Evaluation Center CO.,Ltd,Ningbo 315201,People’s Republic of ChinaCenter of Advanced Lubrication and Seal Materials,Northwestern Polytechnical University,Xi’an 710072,People’s Republic of ChinaState Key Laboratory of Flexible Electronics(LOFE)&Institute of Flexible Electronics(IFE),Northwestern Polytechnical University,127 West Youyi Road,Xi’an 710072,People’s Republic of ChinaShanghai Synchrotron Radiation Facility(SSRF),Zhangjiang Laboratory,Shanghai Advanced Research Institute,Chinese Academy of Sciences,239 Zhangheng Road,Shanghai 201204,People’s Republic of ChinaShenzhen Research Institute of Northwestern Polytechnical University,Sanhang Science&Technology Building,No.45th,Gaoxin South 9th Road,Nanshan District,Shenzhen City 518057,People’s Republic of China State Key Laboratory of Solidification Processing,Center for Nano Energy Materials,School of Materials Science and Engineering,Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU),Xi’an 710072,People’s Republic of China
信息技术与安全科学
Pb-Sn perovskiteRedox shuttleCrystallization regulationAll-perovskite tandemStability
《Nano-Micro Letters》 2026 (5)
P.590-606,17
supported by Guangdong Basic and Applied Basic Research Foundation(2025A1515011362)the National Natural Science Foundation of China(52102304,52172238)Open Project of Shaanxi Laboratory of Aerospace Power(2021SXSYS-01-03).
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