High-efficiency carbon-electrode CsPbI<sub>2</sub>Br solar cells prepared by double ion regulation of cadmium acetate additive
This study introduced CdAc<sub>2</sub> into the CsPbI<sub>2</sub>Br perovskite precursor mixture, where Cd<sup>2+</sup> and Ac<sup>-</sup> ions worked synergistically to passivate vacancies of Pb<sup>2+</sup> and halogen ions within the perovskite lattice. The CdAc<sub>2</sub>-optimized carbon-based CsPbI<sub>2</sub>Br perovskite solar cells (PSCs) demonstrated an impressive power conversion efficiency (PCE) of 14.34%. Furthermore, the unencapsulated device maintained 95% of its initial PCE after 30 days under ambient conditions (15-20% relative humidity).
Authors
- Haozhen Deng
- Xiaosong Qiu (ORCID: https://orcid.org/0000-0001-9111-8693)
- Wen J. Li (ORCID: https://orcid.org/0000-0001-9616-6213)
- Zhenbo Du (ORCID: https://orcid.org/0009-0006-4265-4717)
- Jihuai Wu (ORCID: https://orcid.org/0000-0002-9820-1382)
- Zhang Lan (ORCID: https://orcid.org/0000-0003-4464-6949)
- Lin Gao (ORCID: https://orcid.org/0009-0009-5541-5688)
- Fengli Liu (ORCID: https://orcid.org/0000-0001-8770-6484)
- Qing Yao (ORCID: https://orcid.org/0009-0006-6716-2057)
Institutions
- Huaqiao University (CN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5cc02643a
- Citations
- 2
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 1.46
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Fujian Province