Grain and Interface Engineering for High Efficiency Hybrid Perovskite Solar Cells
Technical Report,15 May 2016,14 Feb 2020
University of Nebraska Lincoln United States
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The goal of this project is to overcome challenges regarding the fabrication of high-efficiency hybrid perovskite photovoltaic planar heterojunction PHJ devices using a low-temperature solution process. Challenges that will be addressed include the 1 presence of too many non-radiative charge recombination channels and 2 lack of proper charge transport layers in PHJ devices. Our approach to address these challenges is to form compact highly crystalline organometal trihalide perovskite films with a large grain aspect ratio by the interdiffusion of solution-deposited lead iodine and methylammonium halide stacking precursor layers, and modify the anode and cathode with functional charge transport layers to eliminate the charge recombination channels.
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