Title :
Thermoelectric properties of individual single-crystalline PbTe nanowires
Author :
Lee, Wooyoung ; Jang, So Young ; Roh, Jong Wook ; Park, Jeunghee ; Wooyoung Lee
Author_Institution :
Dept. of Mater. Sci. & Eng., Yonsei Univ., Seoul, South Korea
Abstract :
We present the thermoelectric properties of individual PbTe nanowires grown by a vapor transport method. Temperature-dependent thermopower and electrical conductivity in PbTe nanowires were investigated. A PbTe nanowire (d = 136 nm) was found to have a Seebeck coefficient of -72 ¿V/K and electrical conductivity of 45 S/cm at 300 K. Thermal conductivity of a PbTe nanowire (d = 290 nm) was also found to be 1.36 W/mK at 300 K. Our results demonstrate the enhanced thermoelectric properties of individual single-crystalline PbTe nanowires, which are higher than that in PbTe bulk.
Keywords :
Seebeck effect; electrical conductivity; lead alloys; nanofabrication; nanowires; tellurium alloys; thermoelectric power; PbTe; Seebeck coefficient; electrical conductivity; nanowires; temperature 300 K; temperature-dependent thermopower; thermoelectric properties; vapor transport method; Nanowires; Thermoelectricity;
Conference_Titel :
Nanoelectronics Conference (INEC), 2010 3rd International
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-3543-2
Electronic_ISBN :
978-1-4244-3544-9
DOI :
10.1109/INEC.2010.5424953
