含C、Ge的Fe-Si-Mn基热电材料的电学性能

Transport properties of Fe-Si-Mn based thermoelectric alloys doped with carbon, germanium

对掺C和Ge的Fe Si Mn基热电材料的电学性能研究表明,相对于未掺的Fe Si Mn基热电材料,掺C样品的电阻率降低,但热电动势率增加。掺Ge样品的电阻率有所升高,但热电动势率增加更快,因此掺C、Ge样品有较高的功率因子,比未掺样品提高近1倍。

The transport properties of FeSiMn based thermoelectric materials doped with C, Ge were studied. It was showed that FeSiMnC alloys have lower electrical resistivities and higher Seebeck coefficients than FeSiMn alloy and as a result have larger power factors. It was observed that doping germanium in FeSi2 based alloys also have high power factors.