Bismuth telluride with the chemical formula of Bi2Te3 is a gray powder that is a compound of bismuth and tellurium. It is a semiconductor, which, when alloyed with antimony or selenium, is an efficient thermoelectric material for refrigeration or portable power generation. Bi2Te3 is a topological insulator, and thus exhibits thickness-dependent physical properties.
Bismuth telluride based alloys are the most widely used semiconductor materials in bulk thermoelectric (TE) devices working around ambient temperature. Very recently, nanostructured bismuth telluride based thin films have attracted particular interest across scientific and engineering disciplines, because they break new ground in the promising applications such as chip-scale micro-cooler for thermal management of high-powered micro/nano-electronics and flexible micro-power generator for energy harvesting. Due to the tremendous progresses in nanoscience and nanotechnology in recent years, the thermoelectric performance of the bismuth telluride based alloys has been significantly enhanced, especially in the thin film materials with well-ordered structures, which promote much higher thermoelectric efficiency than that of the bulk counterpart. Similarly, the numerous influences of the compositions, microstructures, morphologies, thickness, stresstrain and substrate conditions on the thermoelectric properties of bismuth telluride based thin films are intensively reported in the literatures. You can reach out a paper written about bismuth telluride sputtering targets and obtained films by using this sputtering target from the link given below:
You can give an order of bismuth telluride sputtering targets from the links given on the table below:
Comments
Post a Comment