Why the electrodes modified with same material (the variation only different deposition cycle) have so much different (approximately 90 times) in Rct for 10 cycles/layers and 20 cycles.
From my EIS data fitted with NOVA 1.11, the Rct of 10 layers is 91.2kohm wherease Rct of 20 layers is only 0.05kohm. From the Nyquist and bode phase, it shows the 20 layers exhibits supercapacitors behaviour but 10 layers do not. Thus, 10 layers was fitted with Rs[Q(Rct.W)] and 20 layers was fitted with Rs[Q(Rct.W)T]
FYI, the material I used is metal-polymer nanocomposite electrodes and I fabricated with self-assembly approach with difference deposition dipping/immersing cycles.
Sure! You should only focus on SA PB-PPy (10) and SA PB-PPy (20). Thanks.
Basically, EIS measurements point out the time constants of different relaxation phenomena which are conseguence of the imposed peturbation. Different types of relaxation phenomenon generally have different relaxation time constant. To catch these fenomena individually they must significatively differ in the time constant, moreover also the weight of such phenomena is a key factor, a phenomenon with low weight factor might be not clearly observed. Maybe it is your case, with 20 cycles the electrode was better covered.
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