Abstract

Silicide-based thermoelectric (TE) materials are promising candidates for automotive TE generators, which can collect wasted heat and convert it into electricity. Adequate strategies should be used to manufacture highly efficient silicide-based TE devices. This review summarizes novel strategies for obtaining materials that feature excellent TE properties and mechanical reliability. Controlling the carrier concentration and band structure could increase their electronic transport properties, while nanostructure engineering could effectively reduce their lattice thermal conductivity. Moreover, well designed microstructures are required to obtain mechanically reliable TE materials, which indicates that precisely controlling their nanostructure is essential for the improved trade-off relationship between TE and mechanical properties. While many challenges should still be overcome, the development of highly efficient TE materials and devices could represent new solutions for the global energy crisis.

Graphic Abstract

中文翻译：

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硅化物基材料综述：热电和机械性能

摘要

基于硅化物的热电 (TE) 材料是汽车 TE 发电机的有希望的候选材料，它可以收集废热并将其转化为电能。应使用适当的策略来制造高效的基于硅化物的 TE 器件。本综述总结了获得具有优异 TE 特性和机械可靠性的材料的新策略。控制载流子浓度和能带结构可以提高其电子传输性能，而纳米结构工程可以有效降低其晶格热导率。此外，需要精心设计的微结构来获得机械可靠的热电材料，这表明精确控制其纳米结构对于改善热电和机械性能之间的权衡关系至关重要。

图形摘要