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Summary of σ, μ, λD, τDL and τdiff for pure [C4mim][PF6] ionic liquid films with different thicknesses (d) under 0.1 V step voltage at −20 °C.
| Electrodes distance (d) | 64 µm | 23 µm | 4 µm |
|---|---|---|---|
| Conductivity σ (S/cm) | 3.01×10−5 | 3.15×10−5 | 3.34×10−5 |
| Mobility μ (cm2 V−1s−1) | 2.31×10−5 | 2.52×10−5 | 2.48×10−5 |
| Debye length λD (nm) | 1.28 | 1.32 | 0.825 |
| Double layer τDL (s) | 8.09×10−4 | 2.73×10−4 | 7.05×10−5 |
| Diffusion τdiff (s) | 20.22 | 2.41 | 0.17 |
