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CAS Number 2097998-59-7

Materials, Non-Fullerene Acceptors

Product Code M2075A1-50mg
Price £210 ex. VAT

ITIC-4F, high performance acceptor molecule

Non-fullerene acceptor with broad absorption spectrum, 99% purity

Specifications | Pricing and Options | MSDS | Literature and Reviews

Part of our range of non-fullerene acceptors (NFAs), 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.

High efficient non-flullerene acceptor

High efficient non-flullerene acceptor

with highly conjugated core

Better absorption coefficient and red-shifted absorption

Better absorption coefficient and red-shifted absorption

With enhanced intermolecular charge transfer

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High purity

High purity

>99% High purity

ITIC-4F 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.

Our range of non-fullerene acceptors for highly efficient organic solar cells also includes ITIC and ITIC family members ITIC-DCl, ITIC-M, ITIC-Th, and ITIC-DM. Qualifying orders ship free and all orders are covered by the Ossila Guarantee.

Characterisation (1H NMR)

ITIC-2F (IT-4F) Characterisation
1H NMR spectrum of ITIC-4F in CDCl3 (see the full version).

Chemical Structure

Chemical structure of ITIC-4F
Chemical structure of ITIC-4F

General Information

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


Batch Quantity Price
M2075A1 50 mg £210
M2075A1 100 mg £320
M2075A1 250 mg £640
M2075A1 500 mg £1050
M2075A1 1 g £1900

MSDS Documentation


Literature and Reviews

  1. 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.
  2. 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.
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