CAS Number 2097998-59-7
Part of our range of non-fullerene acceptors, ITIC-4F (also known as ITIC-2F or IT-4F), CAS number 2097998-59-7, is a derivative of ITIC. Compared to ITIC, ITIC-4F has a better absorption coefficient and a more red-shifted absorption. This can be ascribed to enhanced intramolecular charge transfer. Devices which use ITIC-4F as the electron acceptor can therefore cover a broader absorption spectrum, which may result in a better power conversion efficiency (PCE).
ITIC-4F 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 [1]), an efficiency of over 13% has been achieved using ITIC-4F as the non-fullerene acceptor and the polymer PBDB-T-SF as the active-layer donor material.
Chemical structure of ITIC-4F (ITIC-2F), CAS number: 2097998-59-7
| CAS Number | 2097998-59-7 |
| Chemical Formula | C94H78F4N4O2S4 |
| Purity | 99% (1H NMR) |
| Full Name | 3,9-bis(2-methylene-((3-(1,1-dicyanomethylene)-6,7-difluoro)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2’,3’-d’]-s-indaceno[1,2-b:5,6-b’]dithiophene |
| Molecular Weight | 1499.90 g/mol |
| HOMO / LUMO | HOMO = -5.66 eV, LUMO = -4.14 eV [1] |
| Synonyms | ITIC-2F, ITIC-F, IT-4F, ITIC-DF, IT4F |
| Classification / Family | NFAs, organic semiconducting materials, low band-gap small molecule, small molecular acceptor, organic photovoltaics, polymer solar cells, NF-PSCs, n-type acceptor |
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