FK102-Co(III)PF6 Salt

10 g

Order Code: M2020A1
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General Information

Full name Tris(2-(1H-pyrazol-1-yl)pyridine)cobalt(III) tri[hexafluorophosphate]
Synonyms FK102
Chemical formula C24H21CoF18N9P3
Molecular weight 929.31 g/mol
CAS number 1346416-71-4
HOMO / LUMO 1.06 V vs NHE
Solubility Acetonitrile
Classification / Family Cobalt complex, Hole transport and dopant materials, Dye Sensitized Solar Cell (DSSC) Materials, Hole Conductor Cobalt Dopants, Organic Photovoltaic (OPV) Materials, Organic and Printed Electronics, Perovskite Materials

Product Details

Purity  >98%
Melting point n/a
Appearance Orange powder


Chemical structure of FK102-Co(III)PF6 Salt; Chemical formula: C24H21CoF18N9P3.



Tris(2-(1H-pyrazol-1-yl)pyridine)cobalt(III) tri[hexafluorophosphate], also known as FK102 Co(III)PF6 Salt, is used as redox electrolyte in DSSC or hole transport and dopant materials in perovskite solar cells. 

In comparison to triiodide-based redox electrolytes, cobalt complexes in general increase photovoltages and particularly at lower light levels (e.g. for indoor applications), significantly increase device power output.

Recommended use:

Liquid-based eletrolytes Typically 0.15-0.2M of Co(II) and ca. 0.05M Co(II)
Solid-state photovoltaic cells Up to 10 weight % added to the hole transport material system.


Literature and Reviews

  1. Tris(2-(1H-pyrazol-1-yl)pyridine)cobalt(III) as p-Type Dopant for Organic Semiconductors and Its Application in Highly Efficient Solid-State Dye-Sensitized Solar Cells, J. Burschka et al., J. Am. Chem. Soc., 133, 18042–18045 (2011); DOI: 10.1021/ja207367t.
  2. Co(III) Complexes as p-Dopants in Solid-State Dye-Sensitized Solar Cells, J. Burschka et al., J.Chem. Mater., 25 (15), 2986–2990 (2013); DOI: 10.1021/cm400796u.
  3. Solution processed graphene structures for perovskite solar cells, M. Batmunkh et al., J. Mater. Chem. A, 4, 2605-2616 (2016); DOI: 10.1039/C5TA08996D.
  4. Single-Walled Carbon Nanotubes Enhance the Efficiency and Stability of Mesoscopic Perovskite Solar Cells, M. Batmunkh et al., ACS Appl. Mater. Interfaces, 9 (23), 19945–19954 (2017); DOI: 10.1021/acsami.7b04894.

To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.