charge carrier concentration measurements in working electrode

[shay]

Dear All

I will be grateful for any idea on how to measure electrochemically the charge carrier in an electrode say working electrode made of Al.

Thank you from advance

Shay

[GCT]

What parameters are you referring to?

[shay]

I refers to charge carrier concentration.
One way is to measure Mott Schottky plot, however it is model dependent through Impedance.
Is there any other electrochemical method?