Xiaowei Wang

TL;DR: A promising flat-panel solar thermal to electric power conversion technology based on the Seebeck effect and high thermal concentration is demonstrated, thus enabling wider applications and opening up a promising new approach which has the potential to achieve cost-effective conversion of solar energy into electricity.

TL;DR: In this paper, a peak ZT of about 1.3 at 900°C in an n-type nanostructured SiGe bulk alloy has been achieved by using a nanostructure approach, mainly due to a reduction in the thermal conductivity caused by the enhanced phonon scattering off the increased density of nanograin boundaries.

TL;DR: The concept of modulation doping in three-dimensional nanostructured bulk materials to increase the thermoelectric figure of merit is introduced via experiment using composites made of doped silicon nanograins and intrinsic silicon germanium grains.

TL;DR: The mechanism for phonon scattering by nanostructures and by point defects in nano-structured silicon and the silicon germanium (Ge) alloy and their thermoelectric properties are investigated in this article.

TL;DR: It is found that a 5 at.