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Thermoelectric modules (TEMs) are solid-state devices used for cooling, heating and power generation. An experimental apparatus was developed to characterize the performance of a TEM and heat sink assembly, where the TEM is operated in refrigeration mode. A numerical model was developed to simulate the experiments. Bulk and interfacial Ohmic heating, along with Peltier and Thomson effects were modeled...
Thin film Ti/Pt heaters and temperature sensors were designed and fabricated to provide controlled heating of meandered microchannels realized on the opposite side of the Si platform. Ti/Pt heaters and temperature sensors were fabricated simultaneously by DC sputtering on SiO2/Si substrate. Annealing temperature in the range 400-700??C was found to influence significantly the sheet resistance and...
Thermoelectric properties of ternary silver thallium tellurides: Ag8T12Te5 and AgT13Te2 were studied above room temperature to slightly below the melting temperature. As for Ag8T12Te5, the effects of Te content on the thermoelectric properties were also studied by characterizing the samples of Ag8T12Tex (x = 5.0, 5.1, 5.2). Both compounds show positive Seebeck coefficient (S). Ag8T12Te5 indicates...
The polycrystalline samples of BaSi2, SrSi2, and LaSi were prepared by spark plasma sintering (SPS). The electrical resistivity (rho) and Seebeck coefficient (S) were measured above room temperature. The S of BaSi2 was negative and the absolute values were rather high (-669 muVK-1 at 337 K). The S of SrSi2 was positive and the absolute values were lower (118 muVK-1 at 332 K) than those of BaSi2. For...
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