How electrical measurements reveal thermoelectric coupling in devices (IMAGE)
Caption
Schematic overview of electrical measurements used to probe thermoelectric materials and devices. A sinusoidal current can be used to measure frequency-domain impedance, while a step current reveals how electrical resistance changes over time. The time-domain response contains both an immediate electrical response and a slower contribution arising from thermoelectric coupling. By analyzing these components, researchers can examine how the thermoelectric material, electrodes, lead wires, and surrounding thermal environment influence the overall device response.
Credit
Yasuhiro Hasegawa from Saitama University
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