Simple fabrication of perovskite solar cells using lead acetate as lead source at low temperature |
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| Affiliation: | 1. Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong, PR China;2. Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, PR China;3. City University of Hong Kong Shenzhen Research Institute, Shenzhen, PR China;1. College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China;2. 32152 Troops, China;3. Beijing Key Laboratory of Novel Thin-Film Solar Cells, Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing 102206, China;4. Energy System Engineering Department, IBA University, Sukkur, Pakistan;1. Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; School of Materials Science & Engineering, Shaanxi Normal University, Xi’an 710119, PR China;2. Dalian National Laboratory for Clean Energy; iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China;1. Department of Physics, The Chinese University of Hong Kong, Shatin 999077, Hong Kong;2. School of Physics and Technology, Wuhan University, Wuhan 430072, People''s Republic of China;1. School of Science, Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, PR China;2. School of Environmental and Chemical Engineering, Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, PR China |
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| Abstract: | We reported a simple one-step, low-temperature solution-processed technique to fabricate perovskite solar cells using lead acetate as the lead source. Solvent annealing was applied for grain growth to obtain better morphology. Uniform perovskite films without pinholes can be obtained by solvent annealing for 5 min at 100 °C. Planar perovskite solar cells based on the high quality perovskite films deliver power conversion efficiency up to 12.71% with negligible hysteresis and good reproducibility. In addition, the substrate surfaces have little effect on the crystallization of perovskite when lead acetate was used, leading to uniform films on different substrates, which can provide a wide choice of substrates and interfacial materials. |
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| Keywords: | Perovskite solar cells Lead acetate Solvent annealing |
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