| Popis: |
In spite of enormous endeavors all over the world during the last 10 years ; from Kyoto's conference which initiated searching for the essentially improved thermoelectric working material ; We think that we are far from a material which has high Z value and, at the same time, that it could be produced in large quantities and could be cheap enough for a mass consumption. There are some reported papers on finding material with Z about 3 but: a) The ingredients are rare and expensive. b) The production seems rather complicate (heterostructures), especially for a mass production. On the other hand: A) increase of the energy consumption in the world, B) pollution, C) disaster of nuclear plants impose using all kinds of renewal and pure energy sources and devices which do not act harmfully on the environment. Both of these demands fulfill thermoelectric devices. In this presentation, we give a short review of the recent endeavors to improve the thermoelectric properties of the silicon based materials by nanowiring. We also present our investigations in this field. |
