Mixed Dimensional Perovskites Heterostructure for Highly Efficient and Stable Perovskite Solar Cells
Ge C. Lu J.-F. Singh M. Ng A. Yu W. Lin H. Satapathi S. Hu H.
April 2022John Wiley and Sons Inc
Solar RRL
2022#6Issue 4
Heterojunctions constructed upon multidimensional perovskites (1D/3D or 2D/3D) has emerged as an effective approach to improve the photovoltaic performance and stability of perovskite solar cells (PSCs). Herein, 1D trimethyl sulfonium lead triiodide (Me3SPbI3) 1D Me3SPbI3 nanoarrays are successfully synthesized via a two-step method in aqueous condition, which reflects excellent water resistivity and environmental stability. By incorporating this 1D Me3SPbI3 into lead halide 3D perovskites, heterostructural 1D/3D perovskite photoactive layer with improved morphology, crystallinity, enhanced photoluminescence lifetime, and reduced carrier recombination in comparison to its 3D counterpart is obtained. Moreover, an efficient and stable 1D/3D PSCs with power conversion efficiency (PCE) of 22.06% by using this 1D/3D perovskite are demonstrated. It noticeably maintained 97% of their initial efficiency after 1000 h storage under ambient condition (RH≈50%) without encapsulation. Our study opens up the design protocol for the development of next-generation highly efficient and stable perovskite solar cells.
aqueous synthesis , perovskite solar cells , stability , trimethylsulfonium lead triiodide 1D/3D heterostructures
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Hoffmann Institute of Advanced MaterialsPostdoctoral Innovation Practice Base, Shenzhen Polytechnic, Nanshan District, Shenzhen, 518055, China
School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning, Guangxi, 530006, China
Research Center for Applied Sciences, Academia Sinica, Taipei, 11529, Taiwan
Department of Electrical and Computer EngineeringSchool of Engineering and Digital Science, Nazarbayev University, Kabanbay Batyr Ave. 53, Nur-Sultan, 010000, Kazakhstan
State Key Laboratory of CatalysisDalian Institute of Chemical PhysicsChinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian, Liaoning, 116023, China
Department of Physics, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India
Hoffmann Institute of Advanced MaterialsPostdoctoral Innovation Practice Base
School of Chemistry and Chemical Engineering
Research Center for Applied Sciences
Department of Electrical and Computer EngineeringSchool of Engineering and Digital Science
State Key Laboratory of CatalysisDalian Institute of Chemical PhysicsChinese Academy of Sciences
Department of Physics
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