Research Article
Photoelectrochemical Stability and Alteration Products of n-Type Single-Crystal ZnO Photoanodes
Table 1
ZnO single-crystals description.
| Sample | Doping | Color | Carrier concentration (×1017 cm−3) | Doping element | Temperature (°C) | Time (hr) |
| (1) 197 | None | Clear | | (2) 204 | Te | 1100 | 4 | Clear | | (3) 201 | Cd | 1100 | 4 | Clear | | (4) 203 | Mg | 1150 | 18 | Dark orange | | (5) 199 | Zn | 1100 | 0.5 | Dark orange | | (6) 198 | Zn | 1150 | 0.5 | Dark orange | | (7) 158 | Gd | Doping elements directly added to the melt | Light green | | (8) 151 | In + Li | Doping elements directly added to the melt | Light blue | | (9) 152 | Er | Doping elements directly added to the melt | Light green | | (10) 149 | Ga + Li | Doping elements directly added to the melt | Blue | |
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