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ELECTROCHEMISTRY
TESTS Cyclic Voltammetry and Galvanostatic Charging are tests used throughout the industrial and scientific communities to study chemical reactions and behavior of electronic structures. They are extremely helpful in the monitoring of nano based dielectrics, used in super / ultra capacitors or self-assembled monolayers (SAMs). The
Cyclic Voltammetry test applies a ramping voltage to a device and measures the
resulting current. In a
capacitor-like structure the current reveals loss in the dielectric as well as
degradation over time. Cyclic
Voltammetry is used to characterize the performance of supercapacitors and
ultracapacitors formed using various nano-technologies.
It is also useful in the studies of self-assembled monolayers used for
sensors.
Capacitance-Voltage
plot for Cyclic Voltammetry test of a good capacitor
Current-Voltage plot for Cyclic Voltammetry test of a good capacitor The Galvanostatic Charging test applies a train of charging and discharging currents to a device and monitors the resulting voltage. In capacitor-like structures dielectric behavior can be studied. In batteries and chemical cells, the efficiency of differing anode, cathode, and electrolyte materials can be evaluated.
Voltage-Time
plot showing three cycles of a Galvanostatic Charging and Discharging test.
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