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Highly Efficient and Stable Perovskite Solar Cells by Introducing a Multifunctional Surface Modulator

Rongshan ZhuangYunnan Key Laboratory for Micro/Nano Materials & Technology International Joint Research Center for Optoelectronic and Energy Materials School of Materials and Energy Yunnan University Kunming 650091 Yunnan P. R. ChinaPeng WangYunnan Key Laboratory for Micro/Nano Materials & Technology International Joint Research Center for Optoelectronic and Energy Materials School of Materials and Energy Yunnan University Kunming 650091 Yunnan P. R. ChinaLinqin WangCenter of Artificial Photosynthesis for Solar Fuels School of Science Westlake University Hangzhou 310024 ChinaQian LaiYunnan Key Laboratory for Micro/Nano Materials & Technology International Joint Research Center for Optoelectronic and Energy Materials School of Materials and Energy Yunnan University Kunming 650091 Yunnan P. R. ChinaJunming QiuSchool of Materials Science and Engineering Beihang University Beijing 100191 ChinaYinjuan ChenKey Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province Instrumentation and Service Center for Molecular Sciences Westlake University 18 Shilongshan Road Hangzhou 310024 Zhejiang Province ChinaXiaoliang ZhangSchool of Materials Science and Engineering Beihang University Beijing 100191 ChinaLicheng SunCenter of Artificial Photosynthesis for Solar Fuels School of Science Westlake University Hangzhou 310024 ChinaYong HuaYunnan Key Laboratory for Micro/Nano Materials & Technology International Joint Research Center for Optoelectronic and Energy Materials School of Materials and Energy Yunnan University Kunming 650091 Yunnan P. R. China

2024en

ABI

Annotatsiya

Abstract Simultaneously passivating the perovskite surface defects and suppressing Li + ions diffusion of hole transport layer (HTL) are still challenging issues. Herein, we report an effective “ three birds with one stone ” strategy by utilizing sodium 4,4′‐(1,4‐phenylenebis(oxy))bis(butane‐1‐sulfonate) (ZR3) containing sulfonic acid groups (SO 3 − ) and Na + ions as a multifunctional surface treatment modulator to simultaneously address the above issues. It is found that ZR3 is not only capable of passivating the Pb‐related defects at the surface of perovskite by the SO 3 − group, but also possesses the remarkable ability to passivate the halide defects with Na + ions. Meanwhile, ZR3 treatment enables the enhanced exciton dissociation of perovskite, better energy level alignment with hole transport layer (HTL), improved hole extraction/transfer from perovskite layer into HTL, and reduced charge carrier recombination in device. Therefore, it results in the enhanced power conversion efficiency (PCE) of 25.34 % in ZR3‐based n‐i‐p device from 22.97 % for the control device. Specifically, p‐i‐n PSCs with ZR3 also achieves an improved PCE of 25.96 % with respect to the pristine one (23.99 %), proving the universality of ZR3 for PSCs. Moreover, the stabilities of ZR3‐treated devices are significantly enhanced owing to Li + ions migration suppressing and perovskite defects reduction.

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Identifikatorlar

DOI: 10.1002/anie.202413660

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