Monolithic Perovskite–Perovskite–Perovskite–Silicon Quadruple-Junction Tandem Solar Cell with Efficiency over 21%
Here, we demonstrate a proof-of-concept perovskite–perovskite–perovskite–silicon quadruple-junction tandem solar cell achieving a power conversion efficiency of 21.4% (steady state at 21.1%) and an open-circuit voltage of 4.01 V. To our knowledge, this is the first perovskite-based quadruple-junction tandem integrated on a silicon bottom cell, demonstrating the feasibility of a silicon-integrated four-junction architecture and establishing a baseline for future device optimization.
Authors
- Long Lin (ORCID: https://orcid.org/0000-0003-4265-1699)
- Leiping Duan (ORCID: https://orcid.org/0000-0001-6253-9018)
- Jianghui Zheng (ORCID: https://orcid.org/0000-0001-5123-7364)
- Baihong Zhu
- Lijie Zheng
- Qingyun Chen (ORCID: https://orcid.org/0000-0002-2574-3244)
- Ying Liu (ORCID: https://orcid.org/0000-0002-8951-2648)
- Bolun Li (ORCID: https://orcid.org/0009-0008-0897-1588)
- Xinqin Liao (ORCID: https://orcid.org/0000-0001-7772-3280)
- Zhong Chen (ORCID: https://orcid.org/0000-0002-1473-2224)
- Jiahui Qi
- Yue Sun
Institutions
- Xiamen University (CN)
- Shenzhen Academy of Aerospace Technology (CN)
Publication Details
- Journal
- ACS Energy Letters
- Published
- 2026-05-08
- DOI
- https://doi.org/10.1021/acsenergylett.6c00879
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Xiamen University
- Basic and Applied Basic Research Foundation of Guangdong Province