Table 3.

Fitting parameters used for curve-fitting in Figure 9a,b.

Specimen No.	Fitting Parameters									Two-Frequency Values
	R0 kΩcm2	C1 μFcm−2	α 1	Rf kΩcm2	C2 μFcm−2	α 2	Rc kΩcm2	W	Rp kΩcm2	Zlow kΩcm2	Zhigh kΩcm2	${\mathit{R}}_{\mathit{P}}^{\prime }$ $\mathbf{k}\mathsf{\Omega }{\mathbf{cm}}^2$
TP2-1	5.23 × 10−2	1.13 × 10−7	0.91	2.62 × 10−2	3.10 × 10−4	0.85	2.06 × 109	-	8.37 × 1014	244.09	0.07	244.02
TP2-2	7.85 × 10−2	5.40 × 10−7	0.66	7.28 × 10−2	5.20 × 10−4	0.78	19.5	1.59 × 100	14.7	15.24	0.06	15.18
TP2-3	1.45 × 10−2	3.76 × 10−7	0.73	7.02 × 10−2	1.10 × 10−3	0.71	38.5	1.34 × 10−6	37.56	29.82	0.10	29.72
TP2-4	0.80 × 10−2	7.07 × 10−9	0.83	1.82 × 100	5.10 × 10−4	0.77	165.10	2.60 × 10−4	135.72	92.23	1.59	90.64