Sample

R_S

(Ω)

CPE₁ (mF/cm²)

n₁

R₁

(Ω)

CPE₂

(mF/cm²)

n₂

R₂

(Ω)

Cu10

2.67

0.17

0.84

8.84

0.35

0.93

22,374

Cu15

5.94

724

0.79

365

834

0.94

29,736

Cu20

3.55

1.65

0.83

---

1.04

0.80

6328

Cu25

5.04

0.80

1.00

---

4.11

0.85

2775