Next-Generation Quantum Materials for Thermoelectric Energy Conversion

被引:3
作者
Singh, Shiva Kumar [1 ]
Munevar, Julian [1 ]
Mendonca-Ferreira, Leticie [1 ]
Avila, Marcos A. A. [1 ]
机构
[1] Univ Fed ABC UFABC, CCNH, BR-09210580 Santo Andre, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
thermoelectric; quantum materials; high entropy alloys; nanowires; topological insulators; semimetals; ULTRALOW THERMAL-CONDUCTIVITY; HIGH ENTROPY ALLOYS; FIGURE-OF-MERITS; TOPOLOGICAL INSULATORS; TRANSPORT-PROPERTIES; PERFORMANCE; ENHANCEMENT; NANOWIRES; BULK; MAGNETORESISTANCE;
D O I
10.3390/cryst13071139
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
This review presents the recent advances in the search for thermoelectric (TE) materials, mostly among intermetallic compounds and in the enhancement of their TE performance. Herein, contemporary approaches towards improving the efficiency of heat-electricity conversion (e.g., energy harvesting and heat pumping) are discussed through the understanding of various emergent physical mechanisms. The strategies for decoupling the individual TE parameters, as well as the simultaneous enhancement of the TE power factor and the suppression of heat conduction, are described for nanoparticle-doped materials, high entropy alloys, and nanowires. The achievement of a superior TE performance due to emergent quantum phenomena is discussed for intermetallic chalcogenides and related systems (e.g., strong and weak topological insulators, Weyl and Dirac semimetals), and some of the most promising compounds within these classes are highlighted. It was concluded that high-entropy alloying provides a methodological breakthrough for employing band engineering methods along with various phonon scattering mechanisms towards significant TE efficiency improvement in conventional TE materials. Finally, topological semimetals and magnetic semimetals with several intriguing features, such as a violation of the Wiedemann-Franz law and outstanding perpendicular Nernst signals, are presented as strong candidates for becoming next-generation TE quantum materials.
引用
收藏
页数:27
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