J–V parameters of DSSCs of Pt, spin-NbSe2 and spin-Nb2Se9 counter electrodes.
| Counter electrode | J sc (mA cm−2) | V oc (V) | FF (%) | PCE (%) |
|---|---|---|---|---|
| Pt | 12.00 | 0.77 | 34 | 3.14 |
| Spin-NbSe2 | 13.00 | 0.95 | 55 | 6.84 |
| Spin-Nb2Se9 | 10.00 | 0.76 | 37 | 2.80 |
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