Table 4.
EIS and diffusional parameters for PPy, PPy NTs, PEDOT, and PEDOT NTs were electropolymerized on the neural microelectrodes as a function of applied charge by fitting experimental EIS data to the model in Figure 3.
QA (μC) |
QA/A (μc/cm2) |
T−Y0 (μS.secˆn) |
B (secˆ.5) |
χ2×10-4 |
L (μm) |
τT (ms) |
RT (KΩ) |
CT (μF) |
D ×10-6 (cm2/s) |
---|---|---|---|---|---|---|---|---|---|
6 | 0.48 | 2.19 | 0.176 | 1.818 | 2.0 | 30.98 | 84.2 | 0.37 | 1.29 |
9 | 0.72 | 4.24 | 0.151 | 2.636 | 3.5 | 22.8 | 35.61 | 0.64 | 5.37 |
12 | 0.96 | 5.52 | 0.128 | 1.730 | 5.0 | 16.38 | 23.21 | 0.71 | 15.26 |
18 | 1.44 | 7.86 | 0.124 | 2.862 | 6.5 | 15.38 | 15.78 | 0.97 | 27.47 |
24 | 1.92 | 9.11 | 0.115 | 1.662 | 7.5 | 13.23 | 11.84 | 1.12 | 42.51 |
36 | 2.88 | 9.87 | 0.098 | 2.619 | 8.3 | 9.6 | 9.93 | 1.23 | 71.76 |