The progress in skutterudite-based thermoelectric materials in our group is reviewed. The effect of the filling fraction on the transport properties of skutterudite material was investigated. It has been found that the partially filled skutterudite with lower filling fraction has better electric transport properties than fully filled skutterudite. Raman scattering investigations on filled skutterudite with different filling fractions has indicated that the rattling degree of the filling atoms in the voids in skutterudite decreases with the increase of the filling fraction. Filled skutterudite NaFe/sub 4/P/sub 12/ nanowires of 25-80 nm in diameter and 500-4000 nm in length have been obtained by using novel hydrothermal-reduction-alloying method. The nanowire can be arrayed directionally the magnetic field. A polyaniline/skutterudite thermoelectric composite was synthesized by using an in situ compounding method. An investigation into the electric transport properties of the composite has been carried out.
展开▼
机译：本文综述了方钴基热电材料的研究进展。研究了填充率对方钴矿材料传输性能的影响。已经发现具有较低填充率的部分填充的方钴矿具有比完全填充的方钴矿更好的电传输性能。拉曼散射对不同填充分数的方钴矿的研究表明，随着填充分数的增加，方钴矿孔隙中填充原子的嘎嘎声程度降低。利用新颖的水热还原合金化方法，获得了直径25-80 nm，长度500-4000 nm的填充方钴矿NaFe / sub 4 / P / sub 12 /纳米线。纳米线可以定向地排列在磁场中。采用原位复合法合成了聚苯胺/方钴矿热电复合材料。已经对复合材料的电传输性质进行了研究。
展开▼
