2. Stability Comparison of Chalcogenide-Based CE in DSSCs.
| CE | PCE (%) | Pt reference PCE (%) | long-term device stability | reported issues or strengths | ref. |
|---|---|---|---|---|---|
| MoS2 | 7.59 | 6.50 | N/A | cost-effective alternatives to Pt | |
| WS2 | 7.73 | 6.50 | N/A | ||
| CoNi2S4 | 4.04 | 4.59 | over 50 cycles of cyclic voltammograms | cost-effective alternatives to Pt | |
| MoS2 | 5.01 | 5.8 | over 40 consecutive Linear sweep voltammetry cycles, | PCE of the MoS2 electrode is closely matching Pt | |
| WSe2:Zn | 8.19 | 7.66 | N/A | cost-effective alternatives to Pt | |
| MoS2–C | 7.69 | 6.74 | 100 cycle cyclic voltammetry | low charge transfer resistance |
a
N/A: not available.