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| semiconductor | BGa/eV | Jmaxb/mA cm–2 | ηSHEc |
|---|---|---|---|
| WO3 | 2.6 | 4 | 5% |
| BiVO4 | 2.4 | 7 | 8% |
| CuWO4 | 2.2 | 10 | 12.5% |
| Fe2O3 | 2.0 | 12.5 | 15% |
| CuMoWO4 | 2.0 | 12.5 | 15% |
bang gap (BG).
maximum current density (Jmax).
solar to hydrogen efficiency (ηSHE) of semiconductor photoanodes assembled in a two-electrode tandem PEC cell, assuming complete light absorption and conversion of photons with energy larger than the band gap and 100% faradaic efficiency to H2 and O2.
