Table 3 RC circuit fitting parameters (error < 5%) of complex impedance semicircles at different temperatures (280 K–140 K).
From: Study of electric conduction mechanisms in bismuth silicate nanofibers
Temp. (K) | Rg (MΩ) | CPEg | ng | Cg | Rgb (MΩ) | CPEgb | ngb | Cgb | Csurface layer |
|---|---|---|---|---|---|---|---|---|---|
280 | 0.47 | 6.25 × 10−12 | 0.93 | 2.96 × 10−12 | 0.47 | 1.89 × 10−11 | 0.88 | 5.86 × 10−12 | 3.21 × 10−7 |
260 | 19.0 | 1.54 × 10−12 | 0.92 | 3.52 × 10−12 | 9.88 | 7.71 × 10−12 | 0.94 | 4.42 × 10−12 | 1.30 × 10−8 |
240 | 38.8 | 5.93 × 10−12 | 0.95 | 2.99 × 10−12 | 21.9 | 5.04 × 10−12 | 0.96 | 3.48 × 10−12 | 2.01 × 10−9 |
220 | 65.6 | 3.19 × 10−11 | 0.92 | 1.61 × 10−11 | 24.1 | 7.04 × 10−12 | 0.98 | 5.70 × 10−12 | 1.97 × 10−9 |
200 | 14.1 | 2.93 × 10−11 | 0.91 | 1.08 × 10−11 | 36.7 | 9.47 × 10−12 | 0.98 | 7.00 × 10−12 | 1.53 × 10−9 |
180 | 10.9 | 4.16 × 10−11 | 0.89 | 1.20 × 10−11 | 57.9 | 7.57 × 10−12 | 0.97 | 5.95 × 10−12 | 1.19 × 10−9 |
160 | 1.30 | 5.16 × 10−11 | 0.91 | 1.64 × 10−11 | 65.0 | 8.86 × 10−12 | 0.98 | 6.48 × 10−12 | 2.50 × 10−9 |
140 | 3.50 | 7.70 × 10−11 | 0.93 | 2.69 × 10−11 | 77.0 | 6.60 × 10−12 | 0.97 | 6.77 × 10−12 | 4.10 × 10−9 |
