Abstract
In the present study, p-Pb0.94Yb0.06Se:Se and n-Pb0.94Yb0.06Se powders were used in a standard synthesized solid-state microwave method of fabricating thermally evaporated thin films. The nanostructure and composition of the films were studied using X-ray diffraction, field emission scanning electron microscopy, and energy dispersive X-ray spectroscopy. The electrical characterizations of the as-deposited film in terms of the Seebeck coefficient, electrical conductivity, and power factor were conducted within the temperature range of 298 K to 523 K. The micro-thermoelectric devices were composed of 20 pairs and 10 pairs of p-Pb0.94Yb0.06Se:Se and n-Pb0.94Yb0.06Se thin films on glass substrates, respectively. The 20 pairs of p–n thermocouples in series generated a maximum open-circuit voltage output (Voc) of 137.84 mV and a maximum output power (Pout) of 25.85 nW at a temperature difference ∆T = 115 K, whereas the 10 pairs of p–n thermocouples generated 84.18 mV and 12.21 nW maximum Voc and maximum Pout, respectively, at ∆T = 128 K.
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