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We investigate the frequency-dependent response of nanoscale thermocouples (NTCs) thermally connected to nanoscale heaters. The heaters are energized using current at frequency ${{\omega }}$ , which results in temperature oscillations of the heater at a frequency $2\; {{\omega }}$ (two heating cycles per current cycle). Furthermore, the voltage measured across the heater contains a $3\; {{\omega }}$...
Frequency-dependent response of nanoscale thermocouples (NTCs) is studied by using a temperature oscillation produced by a nanoscale heater. The thermal response of the NTC and the heater is measured as a function of heater-current frequency by the 2ω and the 3ω method, respectively.
Nanowire thermocouples are attractive candidates for various applications including temperature measurements on the sub-micrometer scale [1], energy harvesting [2], and infrared detection [3]. Thermocouples, which consist of two wires made of dissimilar materials, produce an open-circuit voltage when a temperature difference ΔT is generated across its hot and cold junctions, expressed by VOG = (S1...
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