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CAS Number 2229934-71-6

Materials, Non-Fullerene Acceptors

Product Code M2241A1-100mg
Price £320 ex. VAT

Low price, high purity IDIC-4F available to buy online

Electron acceptor able to give a device performance efficiency of over 12.1%

Specifications | Pricing and Options | MSDS | Literature and Reviews

IDIC-4F (CAS number 2229934-71-6), a fluorinated analog of IDIC, shows an A-D-A type structure. The structure has an electron-donating fused five-member-ring indaceno[1,2-b:5,6-b′]dithiophene (IDT) core, terminated by two electron-withdrawing units, 2-(5,6-difluoro-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile (IC-2F).

All small molecule organic solar cells (SM-OSCs) with H14 as a small molecule donor and IDIC-4F as electron acceptor have an easy to fabricate and simple structure. Such devices have been shown to give a device performance efficiency over 12.1% which is the highest efficiency reported for IDIC-4F-based SM-OSCs.

Device structure: ITO/PEDOT:PSS/H14:IDIC-4F/PDINO/Al [2]

Thickness (nm) VOC(V) JSC(mA cm-2) FF (%) PCE(%)
85 0.943 18.3 70.2 12.1

General Information

CAS Number 2229934-71-6
Chemical Formula C66H62F4N4O2S2
Purity ≥99% (1HNMR)
Full Name 2,2'-((2Z,2'Z)-((4,4,9,9-tetrahexyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b']dithiophene-2,7-diyl)bis(methanylylidene))bis(5,6-difluoro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile
Molecular Weight 1083.35 g/mol
Absorption* λmax 707 nm (Film)
HOMO / LUMO HOMO = -6.30 eV, LUMO = -3.82 eV [1]
Solubility Chloroform, chlorobenzene
Form Dark purple red powder/crystals
Synonyms ID4F, ID-4F
Classification / Family NFAs, n-type non-fullerene electron acceptors, Organic semiconducting materials, Low band-gap small molecule, Small molecular acceptor, Organic photovoltaics, Polymer solar cells, NF-PSCs

*Measurable with the Ossila Optical Spectrometer, see our spectrometers and spectroscopy accessories for more information.

Chemical Structure

Chemical structure of IDIC-4f


Batch Quantity Price
M2241A1 100 mg £320
M2241A1 250 mg £640
M2241A1 500 mg £1150
M2241A1 1 g £2100

MSDS Documentation


Literature and Reviews

  1. Di-fluorinated Oligothiophenes for High-Efficiency All-Small-Molecule Organic Solar Cells: Positional Isomeric Effect of Fluorine Substitution on Performance Variations, T. Duan et al., Solar RRL, 4 (3), 2019; doi: 10.1002/solr.201900472.
  2. Precise Control of Phase Separation Enables 12% Efficiency in All Small Molecule Solar Cells, H. Bin et al., Adv. Energy Mater., 2001589 (2020); DOI: 10.1002/aenm.202001589.
  3. As-cast ternary polymer solar cells based on a nonfullerene acceptor and its fluorinated counterpart showing improved efficiency and good thickness tolerance, F. Pan et al., J. Mater. Chem. A, 7, 9798-9806 (2019); doi: 10.1039/C9TA01003C.
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