为节约能源利用余热而开发的热电材料,目前用的大部分是稀有金属或是毒性较强的元素,此外,热电材料必须有高导电性和低热导率。硅是地球上含量极丰富的元素,如能大幅度降低它的热导率,则前景极好。为此,日本大阪大学基础工学研究科中村茅明深入研究硅的特性,成功制出粒径只有3nm的极细纳米 The thermoelectric materials developed to save energy by using residual heat are currently mostly used for rare metals or highly toxic elements. In addition, the thermoelectric materials must have high electrical conductivity and low thermal conductivity. Silicon is a very rich element on Earth, with a great promise of dramatically reducing its thermal conductivity. To this end, Japan's Osaka University Fundamentals Engineering Research Institute of Mao Ming depth study of the characteristics of silicon, successfully produced only 3nm particle size of nano-fine