Molecular Peripheral Electronegativity Modulates Crystallization Kinetics for Efficient Organic Solar Cells
). As a result, devices employing Y-2FPh, Y-Ph, and Y-2OMePh as acceptors achieve photovoltaic efficiencies of 18.28%, 19.00%, and 18.84%, respectively. Notably, when incorporated as guest components, all three acceptors markedly enhance the performance of the D18:L8-BO reference, with the Y-2OMePh-based ternary device delivering an impressive efficiency of 20.01%. This work establishes peripheral electronegativity as a pivotal handle for finely tuning aggregation and exciton/charge properties toward high-performance solar cells.
Authors
- X J Wang
- Z J Chen
- Qinyong He
- Jie Yang (ORCID: https://orcid.org/0000-0003-4801-7162)
- Liang Shi (ORCID: https://orcid.org/0000-0002-9005-3848)
- Yi-Xiang Wang (ORCID: https://orcid.org/0000-0002-5246-5497)
- Fuzhen Bi
- C R Yang
- Renqiang Shao
- Yonghai Li (ORCID: https://orcid.org/0000-0002-5748-0258)
- Cheng Sun
- Shuangshuang Li
- Qijun Ren
- Hao Lu (ORCID: https://orcid.org/0000-0002-0559-9417)
- Xichang Bao (ORCID: https://orcid.org/0000-0001-7325-7550)
Institutions
- Qingdao University (CN)
- Qingdao University of Science and Technology (CN)
- Beijing Solar Energy Research Institute (CN)
- Changzhou Institute of Technology (CN)
- Shanghai Advanced Research Institute (CN)
- Qinghai New Energy (China) (CN)
- Qingdao Institute of Bioenergy and Bioprocess Technology (CN)
Publication Details
- Journal
- Small Methods
- Published
- 2026-05-08
- DOI
- https://doi.org/10.1002/smtd.70658
- Primary Topic
- Organic Electronics and Photovoltaics
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China