Constructing Efficient ASM Organic Solar Cells Based on DRCN5T
DOI:
https://doi.org/10.54097/av3ag752Keywords:
DRCN5T, Organic solar cell, All-small-molecule (ASM) system.Abstract
All-small-molecule (ASM) donor-acceptor materials have the advantages of good molecular reproducibility and relatively simple synthesis operations. In this paper, the small molecule donor material DRCN5T was synthesized and its related properties were investigated. The HOMO result of DRCN5T was determined to be -5.27 eV. The LUMO energy level was -3.62 eV. In terms of UV-visible absorption, the DRCN5T thin film exhibited a redshift due to π-π stacking as compared to CF solution. Finally, DRCN5T:IDIC-based ASM devices were prepared. After the solvent vapor annealing treatment, the device performances were significantly enhanced, with an open-circuit voltage (VOC) of 0.95 V, a short-circuit current density (JSC) of 12.66 mA cm-2 and a fill factor (FF) of 61.40%, and the power conversion efficiency (PCE) was 7.40%.
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Jinfeng G, Lin X, Ruixiang P, et al.Organic Photovoltaics Utilizing Small-Molecule Donors and Y-series Nonfullerene Acceptors.[J].Advanced materials (Deerfield Beach, Fla.),2022,35(20):e2206566-e2206566.
Weiyu Y, Yue Y, Zhenzhen Z, et al.Nonfullerene All‐Small‐Molecule Organic Solar Cells: Prospect and Limitation [J].Solar RRL,2020,4(11):
Xu Y, Wang Q, Zou W, et al.Recent Progress in All‐Solution‐Processed Organic Solar Cells[J].Chinese Journal of Chemistry,2023,42(2):190-198.
Yunjie X, Jie Z, Shaohui Z. Designing Potential Donor Materials Based on DRCN5T with Halogen Substitutions: A DFT/TDDFT Study [J]. International Journal of Molecular Sciences,2021,22(24):13498-13498.
Kan B, Li M, et al. A Series of Simple Oligomer-like Small Molecules Based on Oligothiophenes for Solution-Processed Solar Cells with High Efficiency. J Am Chem Soc, 2015, 137: 3886−3893.
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