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.
|Full name||Tris(2-(1H-pyrazol-1-yl)pyridine)cobalt(III) tri[hexafluorophosphate]|
|Molecular weight||929.31 g/mol|
|HOMO / LUMO||1.06 V vs NHE|
|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|
|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
- 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.
- 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.
- Solution processed graphene structures for perovskite solar cells, M. Batmunkh et al., J. Mater. Chem. A, 4, 2605-2616 (2016); DOI: 10.1039/C5TA08996D.
- 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.
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