Theeffect of fullerite on the thermoelectric properties of n-type Si_xGe_1-x

Gui-YingXu, Si-Tong Nui, Li-Li Zhang, Cgang-Chun Ge, Ting-Jie Chen

Laboratoryof Special Ceramics and Powder Metallurgy, School of Material Science andEngineering, University of Science and Technology Beijing, 100083, Beijing,China

It has beenfound that the addition of fullerite can increase the thermoelectric propertiesof Si_xGe_1-x used for higher temperature as thermoelectricgenerator. Here different amount of fullerite as hollow quantum dot was addedinto Si_xGe_1-x. The samples were fabricated by HotPressing method. The relations about thermoelectric properties and the additionof fullerite or nanometer carbon tube and the microstructure were investigatedin detail by normal measurement or analytical methods.