Orthogonal Solvent Approach in Dimensionality-Heterointerface Perovskite Photovoltaics
Constructing low-dimensionality/three-dimensionality (LD/3D) perovskite heterointerfaces is a well-established strategy to enhance the perovskite photovoltaic performance. Here, we introduce a solvent-orthogonality approach to precisely tailor the structure and dimensionality of LD perovskites within LD/3D perovskite heterointerfaces, thereby optimizing interfacial energetics. In this approach, LD perovskite precursors, comprising both organic and inorganic components, are dissolved in a mixed acetonitrile and 1,2-dimethoxyethaane solvent system and deposited onto a 3D perovskite layer with minimal impact on the substrate. Unlike traditional cation-exchange methods that focus solely on organic components, our strategy enables the growth of dimensionally tailored LD stacks (1D, 2D, and quasi-2D configurations), forming effective LD/3D heterointerfaces. This optimization improves carrier kinetics at the perovskite-charge transport layer, resulting in an n-i-p device efficiency of 25.14% and solar modules (18 cm2 active area) with 22.61% efficiency. Our solvent-orthogonality strategy presents a promising method for engineering perovskite heterointerfaces in various photovoltaic applications.
Authors
- Jinfei Zhou (ORCID: https://orcid.org/0000-0003-3791-6365)
- Zhenhuang Su (ORCID: https://orcid.org/0000-0003-0026-2601)
- Jun Yin (ORCID: https://orcid.org/0000-0003-4551-3515)
- Ye Yang (ORCID: https://orcid.org/0000-0003-2827-3572)
- Peng Gao (ORCID: https://orcid.org/0000-0002-4963-2282)
- Binghui Wu (ORCID: https://orcid.org/0000-0003-4015-9991)
- Nanfeng Zheng (ORCID: https://orcid.org/0000-0001-9879-4790)
- Qifan Feng (ORCID: https://orcid.org/0009-0007-0717-2154)
- Jing Li (ORCID: https://orcid.org/0000-0003-4814-6896)
- Yu Han (ORCID: https://orcid.org/0000-0003-1462-1118)
- Huifeng Zhang (ORCID: https://orcid.org/0000-0003-1154-3986)
- Fang Cao
- Xiaofeng Huang (ORCID: https://orcid.org/0000-0003-0769-4589)
- Qiu Xiong (ORCID: https://orcid.org/0000-0002-7612-0346)
Institutions
- Chongqing University (CN)
- Xiamen University (CN)
- Chinese Academy of Sciences (CN)
- Shanghai Advanced Research Institute (CN)
- Physical Sciences (United States) (US)
- Fujian Institute of Research on the Structure of Matter (CN)
- Advanced Energy Materials (United States) (US)
- Tan Kah Kee Innovation Laboratory (CN)
- Collaborative Innovation Center of Chemistry for Energy Materials (CN)
- King Abdullah University of Science and Technology (SA)
Publication Details
- Journal
- ACS Energy Letters
- Published
- 2025-01-27
- DOI
- https://doi.org/10.1021/acsenergylett.4c03263
- Citations
- 7
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 5.11
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Fujian Province
- National Key Research and Development Program of China