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Product Code M2021A1-10g
Price £140 ex. VAT

Overview | Specifications | MSDS | Literature and Reviews


Tris(2-(1H-pyrazol-1-yl)pyridine)cobalt(III) tri[bis(trifluoromethane)sulfonimide, FK102-Co(III)TFSi Salt is commonly used as electrolyte for DSSC or p-type dopant for Spiro-MeOTAD in perovskite solar cells, together with Lithium bis(trifluoromethanesulfonyl)imide (LiTFSi) and 4-tert-Butylpyridine (TBP).

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.

General Information


Full name Tris(2-(1H-pyrazol-1-yl)pyridine)cobalt(III) tri[bis(trifluoromethane)sulfonimide
Synonyms FK102
Chemical formula C30H21CoN12O12S6F18
Molecular weight 1334.87 g/mol
CAS number 2057441-94-6
HOMO / LUMO n/a
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
FK102-Co(iii)tfsi-salt
Chemical structure of FK102 Co(III)TFSi Salt; Chemical formula: C30H21CoN12O12S6F18

Product Details


Purity >98%
Melting point 194-199 °C
Appearance Orange powder

Recommended Uses


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.

MSDS Documentation


FK102-Co(III)TFSi Salt MSDSFK102-Co(III)TFSi Salt MSDS Sheet

Literature and Reviews


  1. Transformation of the Excited State and Photovoltaic Efficiency of Ch2Nh2PbI3 Perovskite upon Controlled Exposure to Humidified Air, J. A. Christians et al., J. Am. Chem. Soc. 2015, 137, 1530−1538 (2015); DOI: 10.1021/ja511132a.
  2. Doping and alloying for improved perovskite solar cells, Y. Zhou et al., J. Mater. Chem. A, 4, 17623-17635 (2016); DOI: 10.1039/C6TA08699C.
  3. Credible evidence for the passivation effect of remnant PbI2 in Ch2Nh2PbI3 films in improving the performance of perovskite solar cells, S. Wang et al., Nanoscale, 8, 6600-6608 (2016); DOI: 10.1039/C5NR08344C.
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