In this section:
Chronopotentiometry ................................................................ 7-1
Chronopotentiometry
In the Chronopotentiometry test, your SMU steps the supplied current to a user-defined value where it
is held constant for a specified period. As this current is held, the instrument measures the resulting
potential at user-defined time intervals. The SMU galvanostat can repeat this process for up to ten
defined steps.
Key timing parameters are displayed in the figure below. Note that there is always a measurement at
the beginning of each step.
Figure 123: Possible double-step Chronopotentiometry (DSCP) plot
To ensure proper instrument operation, the potential difference between the reference electrode
(RE) and counter electrode (CE) terminals and between the working electrode (WE) and working
electrode sense (WES) terminals should not exceed 5 V.
Section 7
Chronopotentiometry
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