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ChemicalBook >  Product Catalog >  Chemical Reagents >  Organic reagents >  Cyanate ester / isocyanate >  2,3,5,6-Tetrafluoro-7,7,8,8-tetracyanoquinodimethane


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2,3,5,6-Tetrafluoro-7,7,8,8-tetracyanoquinodimethane Basic information
2,3,5,6-Tetrafluoro-7,7,8,8-tetracyanoquinodimethane Chemical Properties
  • Melting point:285-290 °C(lit.)
  • Boiling point:-89.6±40.0 °C(Predicted)
  • Density 1.7075 (estimate)
  • Water Solubility insoluble
  • BRN 2157887
  • CAS DataBase Reference29261-33-4(CAS DataBase Reference)
Safety Information
2,3,5,6-Tetrafluoro-7,7,8,8-tetracyanoquinodimethane Usage And Synthesis
  • ClassificationFluorinated compounds, p-type dopant, Strong electron acceptor, Hole-injection materials, Hole-transport layer material, OLEDs, Polymer Solar Cells, Perovskite Solar Cells, OFETs.
  • ApplicationsF4TCNQ is one of the most widely used and most effective p-type dopants due to its strong electron-accepting ability and the extended π system. It has a deep LUMO level (-5.2 eV) which is energetically in the vicinity of the HOMO level of many organic semiconductors. Doping is facilitated by charge transfer from the HOMO level of the host to the LUMO of the dopant molecule. Pin devices with F4TCNQ doped 4,4',4''-tris(3-methylphenylphenylamino)triphenylamine (m-MTDATA) serving as the p-doped HTL show high luminance and efficiency at extremely low operating voltages: For instance, a luminance of 1000 cd/m2 is reached at a voltage of 2.9 V.
    It has been reported that by controlling the doping concentration, the PCE of the PCDTBT:F4TCNQ solar cells increased from 6.41% to 7.94%, mainly due to improving the photocurrent with a F4TCNQ weight ratio of the blend lower than 0.5% [2]. F4TCNQ is also used as the p-type dopant for graphenes.
  • Chemical PropertiesYellow-greenish or orange-brown powder
2,3,5,6-Tetrafluoro-7,7,8,8-tetracyanoquinodimethane(29261-33-4)Related Product Information
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