Breaking the Efficiency‐Stability‐Sustainability Trilemma in all‐perovskite Tandem Solar Modules via Oxidative Blockchain Molecular Engineering
Narrow-bandgap (NBG) tin-lead (Sn-Pb) perovskites are vital for all-perovskite tandem solar modules (TSMs), yet their commercialization remains limited by challenges in balancing efficiency, stability, and sustainability. Here, we presented an oxidation-triggered blockchain molecular (BCM) interface engineering strategy, which modified the poly (3,4-ethylenedioxythiophene):poly (styrene sulfonate) (PEDOT:PSS) surface and constructed a dynamic functional layer at the buried PEDOT:PSS/Sn-Pb perovskite interface through synergistic effects of biocompatible rutin molecules and their oxidation derivatives. This approach enabled full-cycle optimization from film formation to operational longevity via sequential regulation of crystallization and carrier dynamics, along with persistent defect passivation through synergistic coordination and hydrogen bonding. Resulting NBG devices achieved champion efficiencies of 23.50% (0.045 cm<sup>2</sup>) and 17.10% (10.4 cm<sup>2</sup>), respectively. The all-perovskite TSMs (10.4 cm<sup>2</sup>) attained a 23.00% aperture efficiency (an active-area efficiency of 24.30%) and retained ∼90% efficiency after 640 h of continuous illumination (extrapolated T<sub>PCE80</sub> lifetime of 3900 h) and after 15 cycles of day-night fatigue tests. Additionally, BCM's dual protection effects (physical barrier and chemical chelation) reduced lead leakage of severely damaged TSMs by 90% under simulated heavy rainfall, demonstrating strong environmental resilience. This work offers a scalable molecular strategy for advancing perovskite photovoltaics from lab-scale innovation to industrial viability.
Authors
- Meifang Yang
- Wenhuai Feng
- Jinglin Sun
- Yuxuan Fang
- Chao Yu (ORCID: https://orcid.org/0000-0002-4028-4250)
- Ying Tan (ORCID: https://orcid.org/0009-0004-3220-5833)
- Jun Fang (ORCID: https://orcid.org/0000-0003-4357-1869)
- Gengling Liu
- Yanjun Fang (ORCID: https://orcid.org/0000-0003-4401-2313)
- Longbin Qiu (ORCID: https://orcid.org/0000-0002-7696-4901)
- Zhibin Yang
- Yuhua Huang (ORCID: https://orcid.org/0000-0002-3533-4532)
- Wu‐Qiang Wu (ORCID: https://orcid.org/0000-0001-5414-5668)
- D. D. Gulamova (ORCID: https://orcid.org/0009-0001-7140-4200)
- Jun‐Xing Zhong (ORCID: https://orcid.org/0009-0009-9949-1885)
- Xudong Wang (ORCID: https://orcid.org/0000-0002-9762-6792)
- Congcong Wu
- Huanyu Chen (ORCID: https://orcid.org/0000-0003-3283-3595)
- Guo Yang (ORCID: https://orcid.org/0000-0002-4315-913X)
- Yongbin Feng
- Xueqing Chang
- Hong Liu (ORCID: https://orcid.org/0000-0002-2380-8286)
- Lixiang Wang
Institutions
- Academy of Sciences Republic of Uzbekistan (UZ)
- Sun Yat-sen University (CN)
- Shanghai Jiao Tong University (CN)
- Guangdong University Of Finances and Economics (CN)
- Southern University of Science and Technology (CN)
- Guangdong University of Education (CN)
- Gannan Normal University (CN)
- Ministry of Education (MV)
- Hubei University (CN)
- Zhejiang University (CN)
- Yangzhou University (CN)
Publication Details
- Journal
- Advanced Materials
- Published
- 2025-08-21
- DOI
- https://doi.org/10.1002/adma.202512129
- Citations
- 3
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 2.19
Funders
- National Natural Science Foundation of China
- National Key Research and Development Program of China
- Basic and Applied Basic Research Foundation of Guangdong Province