High Purity, High Performance Acceptor Molecule
Non-fullerene acceptor with broad absorption spectrum
Part of our range of non-fullerene acceptors, ITIC-2F (also known as IT-4F) shows a more red-shifted absorption than ITIC with an improved absorption coefficient. This can be ascribed to enhanced intramolecular charge transfer. For this reason, devices with ITIC-2F as acceptors can cover a broader absorption spectrum, which can potentially enhance the device PCEs.
ITIC-2F also has deeper HOMO/LUMO energy levels than ITIC. This makes it a better match for most polymer semiconductor donors, and provides better stability for device fabrication and overall performance. Using an inverted device structure (indium tin oxide (ITO)/ZnO/PBDB-T-SF:TI-4F (1:1)/MoO3/Al ), an efficiency of over 13% has been achieved using ITIC-2F (IT-4F) as an acceptor and the polymer PBDB-T-SF as the active-layer donor material.
ITIC-2F from Ossila was used in the high-impact paper (IF 18.81), Stretchable and Transparent Conductive PEDOT:PSS-Based Electrodes for Organic Photovoltaics and Strain Sensors Applications, E. Dauzon et al., Adv. Fun. Mater., 30 (28), 2001251 (2020); DOI: 10.1002/adfm.202001251.
Characterisation (1H NMR)
|Purity||99% (1H NMR)|
|Synonyms||ITIC-F, IT-4F, ITIC-DF|
|HOMO / LUMO||HOMO = -5.66 eV, LUMO = -4.14 eV |
|Classification / Family||NFAs, Organic semiconducting materials, Low band-gap small molecule, Small molecular acceptor, Organic photovoltaics, Polymer solar cells, NF-PSCs, n-type acceptor|
Literature and Reviews
- Molecular Optimization Enables over 13% Efficiency in Organic Solar Cells, W. Zhao at al., J. Am. Chem. Soc., 139 (21), 7148–7151 (2017); DOI: 10.1021/jacs.7b02677.
- Energy-Level Modulation of Small-Molecule Electron Acceptors to Achieve over 12% Efficiency in Polymer Solar Cells, S. Li et al, Adv. Mater., 28, 9423–9429 (2016); DOI: 10.1002/adma.201602776.
To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, pharmaceuticals, cosmetics, food or commercial applications.