Recent Progress of Thermoelectric Nano-composites

被引：49

作者：

Chen Li-Dong ^{[1
]}

Xiong Zhen ^{[1
]}

Bai Sheng-Qiang ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

来源：

JOURNAL OF INORGANIC MATERIALS | 2010年 / 25卷 / 06期

关键词：

thermoelectric; microstructure; nano-composite; scattering; review; QUANTUM-WELL STRUCTURES; FIGURE-OF-MERIT; THERMAL-CONDUCTIVITY; TRANSPORT-PROPERTIES; GROWTH; PBTE; PERFORMANCE; ALLOYS; COSB3; NANOSTRUCTURES;

D O I：

10.3724/SP.J.1077.2010.00561

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Microstructure engineering is an effective avenue for tuning the thermal and electrical transports to optimize thermoelectric (TE) properties. Thermoelectric composites with nano-particle dispersion have been successfully developed by using extrinsic or in-situ formation methods. The lattice thermal conductivity can be depressed by the scattering effects of nano particles to the medium-long-wavelength phonons. The enhanced electron density of states at the Fermi level and the carrier filtering effects caused by the nano-sized grain boundary are also positive for enhancing Seebeck coefficients. The mixing, in-situ oxidation and phase-separation precipitation process supply possibility to realize the nano-particle dispersed structure for different material systems. This paper reviews the recent progress of the research on nano-structured and nano-composite thermoelectric materials. The effects of the nano-dispersion on the electrical and thermal transports will be also discussed.

引用

页码：561 / 568

页数：8

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