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- Title
Thermoelectric Properties of SiC-Nanocomposite n-Type Bi<sub>2</sub>(Te<sub>0.90</sub>Se<sub>0.10</sub>)<sub>3</sub> Prepared by Mechanical Alloying and Microwave Sintering.
- Authors
Liu, Hongliang; Guo, Zhiying; Duan, Xinyu; Yuan, Xiaofeng; Gao, Qianqian
- Abstract
n-type Bi2(Te0.90Se0.10)3/(SiC)y (0 ≤ y ≤ 0.01) composites with nano-SiC were fabricated by mechanical alloying combined with microwave sintering. The microstructure and thermoelectric properties of Bi2(Te0.90Se0.10)3/(SiC)y were studied systematically. The nano-SiC particles as the phonon scattering center uniformly distributed in the matrix, with little effect on the electric transport performance and significantly reducing the thermal conductivity of n-type Bi2(Te0.90Se0.10)3/(SiC)y (0 ≤ y ≤ 0.01). The introduction of nano-SiC optimizes the thermoelectric performance, and the sample with SiC y = 0.0075 obtains the highest ZT~0.94 at 323 K.
- Subjects
MECHANICAL alloying; MICROWAVE sintering; N-type semiconductors; THERMOELECTRIC materials; PHONON scattering; THERMAL conductivity; SCATTERING (Physics); MICROSTRUCTURE
- Publication
Journal of Electronic Materials, 2022, Vol 51, Issue 2, p516
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-021-09320-w