Kwon, O-Jong Park, Jonglo Yim, Ju-Hyuk Koo, Hyun Kim, Jae-Yeol You, HyunWoo Bae, Sung-Hwan Kim, Jin-Sang Park, Chan 2024-01-20T18:01:47Z 2024-01-20T18:01:47Z 2021-09-02 2011-01 1567-1739 https://pubs.kist.re.kr/handle/201004/130798 The microstructures and the thermoelectric properties of the polycrystalline Bi2Te3-PbTe alloy, which was prepared by spark plasma sintering were investigated. The polycrystalline alloy consists of Bi rich and Pb rich regions with several nm sizes, which were identified by transmission electron microscope (TEM) and energy dispersive spectrometer (EDS). The highest power factor, S-2 rho(-1), and ZT value of the polycrystalline alloy were 4.30 x 10(-4) Wm(-1) K-2 and similar to 0.39 at 473 K respectively, and the lowest thermal conductivity was similar to 0.5W/mK at same temperature. The relatively low thermal conductivity of polycrystalline Bi2Te3-PbTe alloy is caused by the increase of grain boundary and interfaces between the Bi-rich and the Pb-rich regions. (C) 2010 Elsevier B. V. All rights reserved. English ELSEVIER SCIENCE BV TEMPERATURE PBTE The effect of microstructure on the thermoelectric properties of Bi2Te3-PbTe alloy Article 10.1016/j.cap.2010.11.078 1 CURRENT APPLIED PHYSICS, v.11, no.1, pp.S242 - S245 CURRENT APPLIED PHYSICS 11 1 S242 S245 scie scopus kci 000288784400051 2-s2.0-79953222899 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article; Proceedings Paper TEMPERATURE PBTE Thermoelectricity Bi2Te3 PbTe