Carbazole Core-Based Small Molecule as an Effective 4- <i>tert</i> -Butylpyridine Replacement for Perovskite Solar Cells
coordination, significantly enhancing Li-TFSI solubility in chlorobenzene and improving HTL film quality. Furthermore, CN-CZ optimizes the energy level alignment, facilitating efficient hole extraction and transport. Correspondingly, the resulting perovskite solar cell achieves a power conversion efficiency (PCE) of 25.8%, surpassing that of the TBP-based reference device (23.8%) while demonstrating markedly enhanced long-term stability.
Authors
- Kun Qin (ORCID: https://orcid.org/0009-0006-3901-7207)
- Hongfei Lu
- Liting Wang
- Ming Cheng
- Bin Cai
- Chengyang Liu
Institutions
- Jiangsu University (CN)
- Jiangsu University of Science and Technology (CN)
- Beijing Solar Energy Research Institute (CN)
Publication Details
- Journal
- The Journal of Physical Chemistry Letters
- Published
- 2026-04-01
- DOI
- https://doi.org/10.1021/acs.jpclett.6c00345
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Senior Talent Foundation of Jiangsu University
- Basic Research Program of Jiangsu Province