FK102-Co(II)PF6 Salt

10 g

Order Code: M2007A1
Not in stock

General Information

Full name Tris(2-(1H-pyrazol-1-yl)pyridine)cobalt(II) di[hexafluorophosphate]
Synonyms Tris(2-(1H-pyrazol-1-yl)pyridine)cobalt(II) bis[hexafluorophosphate]
Chemical formula C24H21CoF12N9P2
Molecular weight 784.35 g/mol
CAS number 1392221-69-0
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 362 oC (lit.)
Appearance Orange powder


Chemical structure of FK102-Co(II)PF6 Salt; Chemical formula: C24H21CoF12N9P2.



Tris(2-(1H-pyrazol-1-yl)pyridine)cobalt(II) di[hexafluorophosphate], commonly known as FK102 Co(II)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. Sequential deposition as a route to high-performance perovskite-sensitized solar cells, J. Burschka et al., Nature 499, 316–319 (2013); doi:10.1038/nature12340.
  2. Perovskite solar cells - An overview of critical issues, A.B. Djurišića et al., Prog. Quant. Electron., 1-37 (2017);
  3. A cobalt complex redox shuttle for dye-sensitized solar cells with high open-circuit potentials, J-H. Yum et al., Nat Commun., 3, 631 (2012); doi: 10.1038/ncomms1655.

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.