Фононная инженерия теплопроводящих свойств аморфных кремниевых нанонитей

Abstract

Research has been conducted to determine the quantum states of the vibrational motion of atoms in amorphous silicon nanowires. The effect of a strong drop in thermal conductivity is observed in such nanocompounds, explained by size quantization of the phonon spectrum due to a disordering of atomic bonds that form quasi-one-dimensional nanostructures. The investigated nanowires can be used as semiconductor thermoelectric cells to convert thermal energy into electrical energy.