Thermoelectric devices are not new .

热电效应装置不是什么新东西。

The thermoelectric convertor makes use of this differential to generate an electric current .

热电变换器利用这种温差来产生电流。

The northwestern researchers note that their multiscale approach is applicable to all bulk thermoelectric materials , not just lead telluride .

西北大学的研究人员注意到，他们的多级方法适用于所有的块状热电材料，而不只是碲化铅。

The second is to choose a thermoelectric material which conducts heat badly ( so that different parts remain at different temperatures ) but electricity well .

第二是选择的热电材料的导热性差（这样不同部分就能保持不同的温度）但是导电性良好。

Widespread use of thermoelectric converters could be simpler and more efficient with organic materials because they are cheap , abundant and easily processed .

有了有机材料，热电转换器的大规模应用可能更加简单和高效，因为有机材料价格便宜、数量充足而且加工容易。