Solvent Annealing of Perovskite‐Induced Crystal Growth for Photovoltaic‐Device Efficiency Enhancement
Zhengguo XiaoDepartment of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience University of Nebraska‐Lincoln Lincoln NE 68588–0526 USAQingfeng DongDepartment of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience University of Nebraska‐Lincoln Lincoln NE 68588–0526 USACheng BiDepartment of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience University of Nebraska‐Lincoln Lincoln NE 68588–0526 USAYuchuan ShaoDepartment of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience University of Nebraska‐Lincoln Lincoln NE 68588–0526 USAYongbo YuanDepartment of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience University of Nebraska‐Lincoln Lincoln NE 68588–0526 USAJinsong HuangDepartment of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience University of Nebraska‐Lincoln Lincoln NE 68588–0526 USA
2014en
ABI
Annotatsiya
Solvent-annealing is found to be an effective method to increase the grain size and carrier diffusion lengths of trihalide perovskite materials. The carrier diffusion length of MAPbI3 is increased to over 1 μm. The efficiency remains above 14.5% when the MAPbI3 thickness changes from 250 nm to 1 μm, with the highest efficiency reaching 15.6%.
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