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Polymer-modified halide perovskite films for efficient and stable planar heterojunction solar cells

Lijian ZuoCalifornia NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USAHexia GuoDepartment of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USADane W. deQuilettesDepartment of Chemistry, University of Washington, Box 351700, Seattle, WA 98195–1700, USASarthak JariwalaDepartment of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USANicholas De MarcoCalifornia NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USAShiqi DongDepartment of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USARyan H. DeBlockDepartment of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USADavid S. GingerDepartment of Chemistry, University of Washington, Box 351700, Seattle, WA 98195–1700, USABruce DunnDepartment of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USAMingkui WangWuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, P.R. ChinaYang YangCalifornia NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA

2017en

ABI

Annotatsiya

perovskite solar cell and one of the lowest voltage deficits reported for any perovskite to date. In addition, perovskite solar cells treated with PVP show a long shelf lifetime of up to 90 days (retaining 85% of the initial efficiency) and increased by a factor of more than 20 compared to those without any polymer (degrading to 85% after ~4 days). Our work opens up a new class of chemical additives for improving perovskite performance and should pave the way toward improving perovskite solar cells for high efficiency and stability.

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DOI: 10.1126/sciadv.1700106

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