题目： | Surface Lattice Engineering Enables Efficient Inverted Perovskite Solar Cells |
作者： | Tianchi Zhang1,2, Tiantian Liu3, Xingtao Wang4, Yuhan Zhou5, Yehui Wen1,2, Junhang Li6, Chunqiong Bao5, Li Wan7, Xuegong Yu1, Weihua Ning2* ,Yong Wang1*, and Deren Yang1 |
单位： | 1State Key Laboratory of Silicon and Advanced Semiconductor Materials，School of Materials Science and Engineering, and Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China. 2Institute of Functional Nano & Soft Materials, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China. 3School of Chemistry and Chemical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, P. R. China. 4Huaneng Clean Energy Research Institute, Beijing 102209, P. R. China. 5National Laboratory of Solid-State Microstructures Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, P. R. China. 6State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. 7Max Planck Institute of Microstructure Physics, 06120 Halle, Germany. |
摘要： | State-of-the-art inverted perovskite solar cells (PSCs) have exhibited considerable promise for commercialization due to their prospective stability. However, the intricate crystallization of halide perovskite, especially for multi-component perovskites, not only distorts the surface lattice from its ideal form but also introduces numerous unsaturated dangling bonds to form surface defects, which can easily lead to reduced stability and poor performance. Herein, a surface lattice engineering is developed by coupling surface unsaturated ions and regulating ion bonding lengths/angles to achieve efficient and stable inverted PSCs. The renovated surface lattice not only eliminates shallow/deep level defects on the surface of perovskite, but also enhances photo/thermal stability of the materials. Moreover, the surface lattice engineering contributes to uniform potential surface, and improves energy-level alignment at the interfaces of the perovskite and C60 carrier transport layer, enhancing charge carrier extraction and transportation. Finally, the champion PSC delivers an impressive efficiency of 25.82% (certified 25.5%). Moreover, these PSCs exhibit excellent operational stability, retaining 94% initial efficiency after more than≈1000 h maximum power point test. |
影响因子： | 24.4 |
分区情况： | 一区 |
链接： | https://doi.org/10.1002/aenm.202403554 责任编辑：杜欣 |