Table 1. Comparison of estimated time constants for the voltage changes in U(t) measurements under UV light (τ batt) and the drop of resistance in R STO(t) measurement (τ RSTO), performed on STO samples with YSZ (series one). Also estimates of time constants from chemical diffusion coefficients in air are given (τ lit).
| Current collector material | Temperature/°C | Atmosphere | τ batt/s | τ RSTO/s | τ lit/s |
| Pt | 360 | Air | 6 | — | 25 |
| Pt | 460 | Air | 20 | — | 10 |
| Pt | 360 | N2 | 10 | — | — |
| Pt | 460 | N2 | 4 | — | — |
| Au | 360 | Air | 13 | 24 | 25 |
| Au | 460 | Air | 4 | 8 | 10 |
| Au | 360 | N2 | 18 | 70 | — |
| Au | 460 | N2 | 16 | 13 | — |