How to use measure capacitance change in COMSOL time dependent study ?

I want to measure change of capacitance due to relative displacement between two parallel plates in COMSOL. Distance between two plates changes with time. So I'm using a time dependent study but...

26 February 2021 8,567 3 View

How to find the capacitive response frequency from the impedance plot?

I have done electrochemical impedance by using cyclic voltammetry for one organic material. from that, I plotted bode diagram. but actually, I am very confused about how to find the capacitive...

18 February 2021 3,023 3 View

How to get better phase shift in C-V curves for ferroelectric devices?

I tried to sweep my ferroelectric devices from -2V to 2V and then from 2V to -2V and The two hysteresis peaks are off by several microFarads. Should i increase bias voltage? I am doing these...

16 February 2021 8,514 2 View

How can find cut off for chronopotentiometery?

I use GPES software in Autolab instrument. when i set cut off in chronopotentiometery to investigate charge/discharge of supercapacitor, the potential not receive to the determined cut off. how...

05 January 2021 2,496 4 View

How can we maintain the two different DC high voltages of same polarity between parallel electrodes inside the vacuum separated by few millimeter?

I am trying to maintain two different high DC voltages of same polarity (either positive or negative) between two parallel electrodes separated by 500 um inside the vacuum. However, what I found...

21 December 2020 1,735 3 View

How to segregate electrode-dielectric and dielctric-dielctric interface polarization after Capacitance VS Freq. measurement using impedance analyzer?

After measuring the capacitance vs frequency for my MIM capacitor consisting of alternate layers of TiO2 &Al2O3 , there is a rise in capacitance value of ~ 20-160 nF at 100 hz, starting to...

17 December 2020 7,786 3 View

How to evaluate area under the discharge curve by using Origin software?

In case of Galvanostat charge-discharge, the discharging time used to evaluate the specific capacitance using following relation: C=I*t/m*dV. But when it comes to capacity, the area under the...

25 November 2020 1,856 1 View

How to structure a Knowledge Management model, to strengthen research and improve educational quality in higher education institutions?

22 November 2020 8,558 9 View

How to Improve the output of Supercapacitors To be used in Elctric Vehicles?

Supercapacitors are the future they say but is there any way to use them only without any battery along. As I have read that MIT is doing research for the development of this but there has been no...

10 November 2020 3,816 2 View

What are the parameters which determine the potential window of an electrolyte?

Aqueous electrolyte have a potential window of 1.2V, while organic and ionic electrolytes have higher potential windows. But what parameter is contributing to this enhancement in the respective...

19 October 2020 2,447 3 View