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A Multifunctional Polymer as an Interfacial Layer for Efficient and Stable Perovskite Solar Cells |
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| Authors: | Bingqian Zhang Chen Chen Xianzhao Wang Xiaofan Du Dachang Liu Xiuhong Sun Zhipeng Li Lianzheng Hao Caiyun Gao Yimeng Li Zhipeng Shao Xiao Wang Prof Guanglei Cui Prof Shuping Pang |
| Institution: | 1. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 P. R. China;2. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 P. R. China
Contribution: Data curation (supporting), Formal analysis (supporting), Investigation (supporting), Methodology (supporting), Visualization (supporting);3. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 P. R. China Contribution: Data curation (supporting), Formal analysis (supporting), Investigation (supporting), Resources (equal), Validation (supporting);4. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 P. R. China Contribution: Methodology (supporting), Software (lead);5. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 P. R. China Contribution: Formal analysis (supporting), Methodology (supporting), Resources (supporting), Validation (supporting), Visualization (supporting), Writing - review & editing (supporting);6. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 P. R. China Contribution: Formal analysis (supporting), Investigation (supporting), Validation (supporting), Writing - review & editing (supporting);7. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 P. R. China Contribution: Methodology (supporting), Validation (supporting), Visualization (supporting);8. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 P. R. China Contribution: Investigation (supporting), Methodology (supporting), Validation (supporting);9. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 P. R. China Contribution: Formal analysis (supporting), Resources (supporting), Validation (supporting);10. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 P. R. China Contribution: Investigation (supporting), Validation (supporting);11. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 P. R. China Contribution: Investigation (supporting), Methodology (supporting) |
| Abstract: | Metal-cation defects and halogen-anion defects in perovskite films are critical to the efficiency and stability of perovskite solar cells (PSCs). In this work, a random polymer, poly(methyl methacrylate-co-acrylamide) (PMMA-AM), was synthesized to serve as an interfacial passivation layer for synergistically passivating the under-coordinated Pb2+ and anchor the I- of the PbI6]4− octahedron. Additionally, the interfacial PMMA-AM passivation layer cannot be destroyed during the hole transport layer deposition because of its low solubility in chlorobenzene. This passivation leads to an enhancement in the open-circuit voltage from 1.12 to 1.22 V and improved stability in solar cell devices, with the device maintaining 95 % of the initial power conversion efficiency (PCE) over 1000 h of maximum power point tracking. Additionally, a large-area solar cell module was fabricated using this approach, achieving a PCE of 20.64 %. |
| Keywords: | Passivation Perovskite Polymer Solar Cells Stability |