CAS Number 2057441-94-6
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.
| 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 |
Chemical structure of FK102 Co(III)TFSi Salt; Chemical formula: C30H21CoN12O12S6F18
| Purity | >98% |
| Melting point | 194-199 °C |
| Appearance | Orange powder |
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