In this section:
Chronoamperometry ................................................................ 6-1
Chronoamperometry
In the Chronoamperometry test, your SMU potentiostat steps the potential to a user-defined value
where it is held constant for a specified period. As this potential is held, the instrument measures the
resulting current at user-defined time intervals. The SMU potentiostat can repeat this process for up
to ten defined steps.
Key timing parameters are shown in the figure below. Note that there is always a measurement at the
beginning of each step.
Figure 104: Example double-step Chronoamperometry (DSCA) 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 6
Chronoamperometry
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