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- Title
Improvement of Thermoelectric Properties of BiSbTe with Addition of Nanoscale Zinc Oxide Particles.
- Authors
Xiao, Ye; Yang, Junyou; Jiang, Qinghui; Fu, Liangwei; Luo, Yubo; Zhang, Dan; Zhou, Zhiwei
- Abstract
Bulk BiSbTe materials with ZnO nanoinclusions have been fabricated by mechanical alloying and plasma-activated sintering. The effects of ZnO addition on the microstructure and thermoelectric performance of the BiSbTe materials have been studied in detail. Scanning electron microscopy (SEM) observation confirms that the ZnO particles distribute in the BiSbTe matrix homogeneously until the content is over 0.5 wt.%. The resistivity and Seebeck coefficient of the samples increase slightly with the ZnO content, while the thermal conductivity is reduced effectively by addition of ZnO nanoparticles due to extra phonon scattering at ZnO nanoinclusions, and a maximum ZT of 1.21 is achieved in the sample with 0.3 wt.% ZnO at 373 K.
- Subjects
BISMUTH compounds; THERMOELECTRIC materials; ZINC oxide; METAL microstructure; THERMAL conductivity
- Publication
Journal of Electronic Materials, 2016, Vol 45, Issue 3, p1266
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-015-3991-2