Synergistic Management of Crystallization and Defects in Tin‐Lead Perovskites towards Efficient All‐Perovskite Tandem Solar Cells
) to immobilize its migration. Besides, the ionic hydrogen bonds between AHC and the perovskite components slowed down the crystallization process of perovskite and inhibited halide ion migration. Importantly, the specific interaction between AGS and AHC enabled a uniform distribution of the additives and provided efficient defect passivation at grain boundaries. This synergy regulated the film formation kinetics, promoted preferred orientation growth, and enhanced crystallinity, thereby reducing non-radiative recombination and ion migration. As a result, our Sn-Pb perovskite solar cells achieved an efficiency of up to 23.44%. Furthermore, we demonstrated a champion efficiency of 29.36% (certified 28.57%) for APTSCs.
Authors
- Chuanxiao Xiao (ORCID: https://orcid.org/0000-0002-4136-2249)
- Jiayu You (ORCID: https://orcid.org/0009-0009-4472-846X)
- Juncheng Wang (ORCID: https://orcid.org/0009-0007-7536-5433)
- R. Wang
- Shining Zhang
- Hao Zhang (ORCID: https://orcid.org/0000-0002-3094-6222)
- Shun Zhou (ORCID: https://orcid.org/0000-0003-4572-9666)
- Yuliang Xu (ORCID: https://orcid.org/0009-0006-7324-3240)
- Yi Luo (ORCID: https://orcid.org/0000-0002-8494-218X)
- Zhiyu Gao (ORCID: https://orcid.org/0009-0006-8496-8669)
- Cong Chen (ORCID: https://orcid.org/0000-0003-2692-1871)
- Dinghao Ma
- Wenbo Jiao
- Hao Huang
- Jialun Jin
- Xinxing Yin
- Dewei Zhao (ORCID: https://orcid.org/0000-0001-7914-6288)
- Yanqing Yao
- Peng Cui
- Wen‐Hua Zhang (ORCID: https://orcid.org/0009-0000-2774-4761)
- Martin Stolterfoht
- Shenghan Wu
- Xing Zhao
Institutions
- Guangxi University (CN)
- North China Electric Power University (CN)
- Chinese University of Hong Kong (HK)
- Chinese Academy of Sciences (CN)
- Wuhan University (CN)
- Zunyi Normal College (CN)
- Jiaxing University (CN)
- Yunnan Institute of Environmental Sciences (CN)
- Ningbo Institute of Industrial Technology (CN)
- Ministry of Energy (IL)
Publication Details
- Journal
- Advanced Materials
- Published
- 2026-04-16
- DOI
- https://doi.org/10.1002/adma.73038
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Innovation and Technology Commission
- Chinese University of Hong Kong
- Natural Science Foundation of Sichuan Province
- National Key Research and Development Program of China