Thermoelectricproperties on p-type (Bi_xSb_1-x)₂Te₃materials containing fullerite

Gui-YingXu, Li-Li Zhang, Si-Tong Niu, Wen Xia, Chang-Chun Ge

Laboratory of Special Ceramics and Powder Metallurgy, School ofMaterial Science and Engineering, University of Science and Technology Beijing,100083, Beijing, China

P-type (Bi_xSb_1-x)₂Te₃are typical thermoelectric materials used for lower temperature and have beeninvestigated by many scientists. Here the samples of them containing differentamounts of fullerite were fabricated by Hot Pressing method. It was found thatthe addition of a suitable amount of fullerite can increase the thermoelectricproperties. The relations about thermoelectric properties, the addition of agiven amount of fullerite and the microstructure were investigated in detail bynormal measurements or analytical methods.

This work is financiallysupported by National Natural Science Foundation of China, Grant No. 60176004,and by The National High Technology Research and Development Program of China,Grant No. 2002AA31.