Suppressed Ion Migration by Heterojunction Layer for Stable Wide-Bandgap Perovskite and Tandem Photovoltaics
Wide-bandgap (WBG) perovskite has demonstrated great potential in perovskite-based tandem solar cells. The power conversion efficiency (PCE) of such devices has surpassed 34%, signifying a new era for renewable energy development. However, the ion migration reduces the stability and hinders the commercialization, which is yet to be resolved despite many attempts. A big step forward has now been achieved by the simulation method. The detailed thermodynamics and kinetics of the migration process have been revealed for the first time. The stability has been enhanced by more than 100% via the heterojunction layer on top of the WBG perovskite film, which provided extra bonding for kinetic protection. Hopefully, these discoveries will open a new gate for WBG perovskite research and accelerate the application of perovskite-based tandem solar cells.
Authors
- Taoran Wang (ORCID: https://orcid.org/0000-0003-1321-4158)
- Wenjuan Yang (ORCID: https://orcid.org/0000-0002-1988-9861)
- Fan Xu (ORCID: https://orcid.org/0000-0003-0833-1982)
- Weiwei Zhang (ORCID: https://orcid.org/0000-0002-5255-7340)
- Gu Xu (ORCID: https://orcid.org/0000-0003-3936-3899)
- Z.S. Yu
Institutions
- China National Offshore Oil Corporation (China) (CN)
- University of Toronto (CA)
- Peking University (CN)
- University Town of Shenzhen (CN)
- Collaborative Innovation Center of Quantum Matter (CN)
- McMaster University (CA)
Publication Details
- Journal
- Molecules
- Published
- 2024-08-26
- DOI
- https://doi.org/10.3390/molecules29174030
- Citations
- 2
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.42