A binary 2D perovskite passivation for efficient and stable perovskite/silicon tandem solar cells
To achieve high power conversion efficiency in perovskite/silicon tandem solar cells, it is necessary to develop a promising wide-bandgap perovskite absorber and processing techniques in relevance. To date, the performance of devices based on wide-bandgap perovskite is still limited mainly by carrier recombination at their electron extraction interface. Here, we demonstrate assembling a binary two-dimensional perovskite by both alternating-cation-interlayer phase and Ruddlesden-Popper phase to passivate perovskite/C<sub>60</sub> interface. The binary two-dimensional strategy takes effects not only at the interface but also in the bulk, which enables efficient charge transport in a wide-bandgap perovskite solar cell with a stabilized efficiency of 20.79% (1 cm<sup>2</sup>). Based on this absorber, a monolithic perovskite/silicon tandem solar cell is fabricated with a steady-state efficiency of 30.65% assessed by a third party. Moreover, the tandem devices retain 96% of their initial efficiency after 527 h of operation under full spectral continuous illumination, and 98% after 1000 h of damp-heat testing (85 °C with 85% relative humidity).
Authors
- Qianqian Wang (ORCID: https://orcid.org/0000-0001-6283-2257)
- Yuetong Wu (ORCID: https://orcid.org/0009-0004-7268-5587)
- Feng Wang
- Wentao Zhou (ORCID: https://orcid.org/0000-0003-1354-6160)
- Huanping Zhou (ORCID: https://orcid.org/0000-0002-0070-5540)
- Fengtao Pei (ORCID: https://orcid.org/0000-0002-8130-1782)
- Haipeng Xie (ORCID: https://orcid.org/0000-0002-1220-4778)
- Xiuxiu Niu (ORCID: https://orcid.org/0000-0002-6819-090X)
- Jiaqian Kang (ORCID: https://orcid.org/0009-0005-0527-606X)
- Xueyun Wang (ORCID: https://orcid.org/0000-0001-5264-9539)
- Guizhou Yuan
- Tinglu Song (ORCID: https://orcid.org/0000-0003-3907-7956)
- Yiliang Wu (ORCID: https://orcid.org/0000-0002-5369-2130)
- Huifen Liu (ORCID: https://orcid.org/0000-0003-2559-3466)
- Mengqi Xiao
- Qi Chen (ORCID: https://orcid.org/0000-0002-9647-5873)
- Liang Li (ORCID: https://orcid.org/0000-0003-0708-7762)
- Yue Ma (ORCID: https://orcid.org/0000-0001-8672-4090)
- Guilin Liu (ORCID: https://orcid.org/0000-0003-1158-7129)
- Yihua Chen (ORCID: https://orcid.org/0000-0002-6475-099X)
- Kailin Li (ORCID: https://orcid.org/0000-0003-1753-3105)
- Ning Yang (ORCID: https://orcid.org/0000-0003-0182-0185)
- Cheng Zhu (ORCID: https://orcid.org/0009-0007-0178-8476)
- Ying Zhang (ORCID: https://orcid.org/0000-0002-7341-6790)
- Ye Duan
Institutions
- Jiangnan University (CN)
- Beijing Institute of Technology (CN)
- Central South University (CN)
- Peking University (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2024-08-15
- DOI
- https://doi.org/10.1038/s41467-024-51345-2
- Citations
- 55
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 11.48
Funders
- Salt Science Research Foundation
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation
- National Key Research and Development Program of China