Title :
Thermoelectric properties and microstructure of SnTe-Bi2Te3 alloys
Author :
Zhou, Xisong ; Nan, Jun ; Wu, Junbo ; Nan, Ce Wen
Author_Institution :
Dept. of Mater. Sci. & Eng., Tsinghua Univ., Beijing, China
Abstract :
Bismuth telluride based alloys have been a class of important thermoelectric materials. In this paper, polycrystalline samples of ternary compounds in the SnTn-Bi2Te3 system were prepared by a rapid quenching of the melt followed by a sintering procedure of compacted pellets. The microstructure and thermoelectric properties, including Seebeck coefficient, electrical and thermal conductivities, of the samples were measured. The influence of processing routes, and constituent concentration on the thermoelectric properties was studied and discussed
Keywords :
IV-VI semiconductors; Seebeck effect; bismuth compounds; crystal microstructure; electrical conductivity; quenching (thermal); semiconductor materials; sintering; thermal conductivity; tin compounds; Seebeck coefficient; SnTe-Bi2Te3; compacted pellets; electrical conductivity; microstructure; polycrystalline samples; rapid quenching; sintering; thermal conductivity; Argon; Bismuth; Conducting materials; Microstructure; Tellurium; Temperature dependence; Temperature distribution; Thermal conductivity; Thermoelectricity; Tin;
Conference_Titel :
Thermoelectrics, 2001. Proceedings ICT 2001. XX International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-7205-0
DOI :
10.1109/ICT.2001.979834
