2. Measured Ionic Conductivity and Calculated Activation Energy for the Mono- and Dual-Step Samples.
sample | total Ionic conductivity (25 °C)/S cm–1 | bulk activation energy E A/eV | GB activation energy E A/eV | total activation energy E A/eV |
---|---|---|---|---|
DS1 | 1.41 × 10–4 | 0.46 | ||
DS2 | 4.57 × 10–5 | 0.547 | 0.567 | |
DS3 | 2.10 × 10–4 | 0.48 | ||
DS4 | 1.62 × 10–4 | 0.48 | ||
MS1 | 8.54 × 10–5 | 0.52 | ||
MS2 | 1.75 × 10–4 | 0.484 | 0.541 | |
MS3 | 2.12 × 10–4 | 0.487 | 0.580 | |
MS4 | 9.38 × 10–5 | 0.54 |