Silicon-germanium alloys is one of the best thermoelectric materials in power generation devices operatingudin 600-1000 C range in heat conversion into electricity directly. The enhancement of efficiency comesudmainly from a significant reduction in the thermal conductivity caused by the enhanced phonon scatteringudoff the increased density of nanograin boundaries.When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35515
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