Ternary Passivation for Enhanced Carrier Transport and Recombination Suppression in Highly Efficient Sn‐Based Perovskite Solar Cells
The exploration of nontoxic Sn-based perovskites as a viable alternative to their toxic Pb-based counterparts has garnered increased attention. However, the power conversion efficiency of Sn-based perovskite solar cells lags significantly behind their Pb-based counterparts. This study presents a ternary passivation strategy aimed at enhancing device performance, employing [6,6]-phenyl-C61-butyric-acid-methyl-ester (PCBM), poly(3-hexylthiophene) (P3HT), and indene C60 bisadduct (ICBA). These components play crucial roles in managing energy levels and enhancing carrier transportation, respectively. The results reveal that the introduction of the ternary system leads to improvements in carrier collection and transportation, accompanied by a suppression of the recombination process. Ultimately, the champion device achieves a remarkable performance with an efficiency of 14.64%. Notably, the device also exhibits robust operational and long-term stored stability.
Authors
- Takeshi Kitamura (ORCID: https://orcid.org/0009-0005-2782-4549)
- Tingli Ma (ORCID: https://orcid.org/0000-0002-3310-459X)
- Hua̅n Bì (ORCID: https://orcid.org/0000-0001-7680-9816)
- Qing Shen (ORCID: https://orcid.org/0009-0003-5509-2571)
- Yoshitaka Sanehira (ORCID: https://orcid.org/0000-0003-2030-2690)
- Ajay Kumar Baranwal (ORCID: https://orcid.org/0000-0003-4582-4532)
- Qingqing Miao (ORCID: https://orcid.org/0000-0002-0871-9090)
- Jiaqi Liu (ORCID: https://orcid.org/0000-0002-5738-4741)
- Liang Wang (ORCID: https://orcid.org/0000-0002-6381-1148)
- Zheng Zhang (ORCID: https://orcid.org/0000-0002-1568-2732)
- Dandan Wang (ORCID: https://orcid.org/0000-0002-4708-2707)
- Mengmeng Chen (ORCID: https://orcid.org/0000-0003-0789-9496)
- Gaurav Kapil (ORCID: https://orcid.org/0000-0002-5066-4978)
- Shuzi Hayase (ORCID: https://orcid.org/0000-0002-0756-4808)
Institutions
- Henan University (CN)
- University of Electro-Communications (JP)
- Kyushu Institute of Technology (JP)
- Institute of Process Engineering (CN)
- Zhengzhou Institute of Emerging Industrial Technology (CN)
Publication Details
- Journal
- Small
- Published
- 2024-08-09
- DOI
- https://doi.org/10.1002/smll.202404026
- Citations
- 5
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 1.04
Funders
- JST-Mirai Program