FK102-Co(II)TFSI salt is a pyrazole-pyridine cobalt(II) complex, tris(2-(1H-pyrazol-1-yl)pyridine)cobalt(II) di[bis(trifluoromethane)sulfonimide], supplied as an orange powder with a purity above 98%. It serves as a p-type dopant for hole transport materials such as spiro-OMeTAD in perovskite solar cells.
Introducing this dopant raises the conductivity of the hole transport layer and, in most perovskite devices, shifts its energy levels downward. The result is more effective extraction and transfer of charge from the perovskite absorber, which translates into better device performance and higher power conversion efficiency. The bulky TFSI anions help stabilise oxidised spiro-OMeTAD, and the dopant is also thought to improve cell stability when oxygen and moisture are present.
The salt dissolves in acetonitrile, has a molecular weight of 1054.71 g/mol and a literature melting point of 167 °C. It is relevant to research on perovskite, dye-sensitized and organic photovoltaic devices.
- P-type doping of spiro-OMeTAD hole transport layers in perovskite solar cells.
- Improving hole transport layer conductivity and power conversion efficiency in perovskite devices.
- Research on perovskite solar cell stability under oxygen and moisture exposure.
- Hole conductor studies in dye-sensitized solar cells (DSSC).
- Materials research in organic photovoltaics and organic and printed electronics.
| Brand | Ossila |
|---|---|
| CAS number | n/a |
| Molecular formula | C28H21CoN11O8S4F12 |
| Purity | >98% |
| Category | — |
| Pack sizes | 10 g |
| Physical form | Orange powder |
| Storage | — |
- Product code: M2019A1
- Full name: Tris(2-(1H-pyrazol-1-yl)pyridine)cobalt(II) di[bis(trifluoromethane)sulfonimide]
- Synonym: Tris(2-(1H-pyrazol-1-yl)pyridine)cobalt(II) bis[bis(trifluoromethane)sulfonimide]
- Molecular weight: 1054.71 g/mol
- Solubility: Acetonitrile
- Melting point: 167 °C (lit.)
—
—