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Composition of the sensor films.
| Name | Film Composition |
|---|---|
| ST20 650 | SnO2, TiO2 (20%) |
| ST25 650 | SnO2, TiO2 (25%) |
| ST25 + Au1% | SnO2, TiO2 (25%), Au (1%) |
| ST30 650 | SnO2, TiO2 (30%) |
| ST50 650 | SnO2, TiO2 (50%) |
| WS30 | WO3, SnO2 (30%) |
| TiTaV | TiO2, Ta2O5, vanadium oxide |
| STN | SnO2, TiO2, Nb2TiO7 |
