Bismuth telluride (Bi2Te3) is a gray powder that is a compound of bismuth and tellurium also known as bismuth(III) telluride. 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 … See more Bismuth telluride is a narrow-gap layered semiconductor with a trigonal unit cell. The valence and conduction band structure can be described as a many-ellipsoidal model with 6 constant-energy ellipsoids that are centered … See more Bismuth telluride is a well-studied topological insulator. Its physical properties have been shown to change at highly reduced thicknesses, when its conducting surface … See more • Thermoelectric materials • Thermoelectric effect • Topological insulator See more The mineral form of Bi2Te3 is tellurobismuthite which is moderately rare. There are many natural bismuth tellurides of different stoichiometry, as well as compounds of the Bi-Te-S-(Se) system, like Bi2Te2S (tetradymite). Bismuth telluride … See more • Media related to Bismuth telluride at Wikimedia Commons • Bismuth Telluride and its Alloys (Chapter 4.5 of Martin Wagner dissertation) See more WebThe another name is bismuth (III) telluride. It owns good electrical conductivity, however thermal conductivity is bad, which is perfect thermoelectric materials. Thermoelectric material is function material that realize direct interconversion between …
Ultralow Lattice Thermal Conductivity and Improved …
WebBismuth telluride is the dominant thermoelectric material for applications near room temperature due to its inherently low lattice thermal conductivity and high … WebApr 5, 2024 · Abstract. Bismuth telluride is the working material for most Peltier cooling devices and thermoelectric generators. This is because Bi 2 Te 3 (or more precisely its alloys with Sb 2 Te 3 for p-type and Bi 2 Se 3 … city countries
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WebFeb 28, 2014 · Bismuth Telluride (Bi 2 Te 3 ) is a small band gap semiconductor having exciting applications as a thermoelectric material, topological insulator (TI), optical absorber, etc. [1, 2]. TIs are... WebMar 15, 2024 · We report ultralow lattice thermal conductivity in the 0.3 ≤ κ L ≤ 0.6 W m⁻¹ K⁻¹ range in nanoporous bulk bismuth telluride pellets obtained by sintering chemically synthesized nanostructures, together with single-crystal-like electron mobilities and Seebeck coefficients at comparable charge carrier concentrations. WebMeasurements of the thermal conductivity of bismuth telluride have been made in the range of temperature 150°K to 300°K. It has been found that the electronic contribution … dictionary leather