Zintl相材料热电性能的研究及其最新进展

Research on Thermoelectric Performance of Zintl Phase Materials

Zintl相热电材料符合"电子晶体-声子玻璃(Electron crystal-phononglass,简称PGEC)"的概念,其中阴离子区域充当"电子晶体",阳离子区域充当"声子玻璃",分别控制材料的电导和热导特性,可实现通过多途径提高其热电性能,是非常具有开发前景的热电材料。详细总结了近年来发现的几种性能突出的Zintl相热电材料,探索了提高其热电性能的途径,最后展望了Zintl相热电材料的发展及应用前景。

Zintl phase is a kind of promising thermoelectric materials, meeting the concept of ＂electron crystalphonon glass＂, the anions of which provide the ＂electron crystal＂ electronic structure to control electric conductivity, and the cations provide the ＂phonon glass＂ structure to control thermal conductivity. Several Zintl phase materials with good thermoelectric performance are described in detail, and several potential approaches are proposed to improve their thermoelectric performance. The development trend and application prospect of Zintl phase materials are simply discussed in the end.