FIC, namely 2-[5(6)-Fluoro-3-oxo-2,3-dihydro-1H-inden-1-ylidene]malononitrile, is a mono-fluorinated electron deficient end group that is used for the synthesis of highly efficient non-fullerene acceptors, i.e. L8-BO-F.
It is believed that fluorination of the end groups can promote intermolecular interactions through forming noncovalent F···S and F···H bonds to further extend the absorption of the targeted NFAs into near infrared (NIR).
|Molecular weight||212.18 g/mol|
|Classification / Family||Malononitrile, Indanone, Monomer and intermediates, None-fullerene acceptors (NFAs), NFA-OSCs, printing electronics|
|Purity||>98% (by NMR)|
|Appearance||Off-white crystalline powder|
Literature and Reviews
- A Well-Mixed Phase Formed by Two Compatible Non-Fullerene Acceptors Enables Ternary Organic Solar Cells with Efficiency over 18.6%, Y. Cai et al., Adv. Mater., 33 (33), 2101733 (2021); DOI: 10.1002/adma.202101733.
- Efficient Non-Fullerene Organic Photovoltaic Modules Incorporating As-Cast and Thickness-Insensitive Photoactive Layers, T. Zhang et al., Adv. Energy Mater., 8 (25), 1801387 (2018); DOI: 10.1002/aenm.201801387.
- An asymmetric acceptor enabling 77.51% fill factor in organic solar cells, J. Cao et al., Sci. Bull. 65, 1876–1879 (2020); DOI: 10.1016/j.scib.2020.08.004.
- High-Performance Additive-/Post-Treatment-Free Nonfullerene Polymer Solar Cells via Tuning Molecular Weight of Conjugated Polymers, Z. Li et al., Small, 14 (16), 1704491 (2018); DOI: 10.1002/smll.201704491.
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