• thermoelectric generators using p-pb0.925yb0.075te:te and n-pb0.925yb0.075se0.2te0.8 thin films prepared by the thermal evaporation method

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 787
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     in this study, p-pb0.925yb0.075te:te and n-pb0.925yb0.075se0.2te0.8 ingots were used in a standard solid-state microwave synthesis route for fabricating thermally evaporated thin films. the nanostructure and composition of the films were studied through x-ray diffraction, field-emission scanning electron microscopy, and energy-dispersive x-ray spectroscopy. measurements of the seebeck coefficient and electrical conductivity were performed at 298 k to 523 k. the microthermoelectric devices were composed of 20 pairs and 10 pairs of p-pb0.925yb0.075te:te and n-pb0.925yb0.075se0.2te0.8 thin films on glass substrates, respectively. the 20-pair pn thermocouples in series generated a maximum output open-circuit voltage of 275.3 mv and a maximum output power of 54.37 nw at a temperature difference δt = 162 k, and 109.4 mv and 16.68 nw at δt = 162 k for 10 pairs, respectively.

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