- منطقة بودونغ الجديدة ، شنغهاي ، الصين .
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Bismuth telluride is the most efficient and most widely used thermoelectric material for low-temperature applications (up to 200 °C). Currently, there are a range of fabrication techniques being used for thin film fabrication, such as sputtering, chemical vapor deposition (CVD), pulsed laser deposition (PLD), molecular beam epitaxy (MBE), …
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We demonstrate the rational solution-phase synthesis of compositional modulated telluride nanowire heterostructures containing lead telluride (PbTe) and bismuth telluride (Bi2Te3). By tuning the ratio between PbTe and Bi2Te3 through adjusting the amount of critical reactants and precursors during the synthesis, the …
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Bismuth telluride 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 topological insulator, and thus exhibits thickness-dependent …
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Bismuth telluride is known to wield unique properties for a wide range of device applications. However, as devices migrate to the nanometer scale, significant amount of studies are being conducted to keep up with the rapidly growing nanotechnological field. Bi2Te3 possesses distinctive properties at the nanometer level …
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Bismuth telluride (Bi 2 Te 3) based thermoelectric materials exhibit their best performance near room temperature making them an ideal candidate to power wearable electronics and sensors using body heat. In this report, Bi 2 Te 3 thin films are deposited on a flexible polyimide substrate using low-cost and scalable manufacturing methods.
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Bismuth telluride (Bi2Te3) is the best-known commercially used thermoelectric material in the bulk form for cooling and power generation applications at ambient temperature. However, its dimensionless figure-of-merit-ZT around 1 limits the large-scale industrial applications. Recent studies indicate
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Bismuth telluride nanostructures: preparation, thermoelectric properties and topological insulating effect Eric ASHALLEY1, Haiyuan CHEN2, Xin TONG1, Handong LI2, and Zhiming M. WANG( )1,2 1 Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
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Bismuth(III) telluride; CAS Number: ; EC Number: 215-135-2; Synonyms: Bismuth sesquitelluride,Bismuth telluride,Dibismuth tritelluride; Linear Formula: Bi2Te3; find Sigma-Aldrich-401099 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich
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Alloying bismuth telluride with antimony telluride and bismuth selenide for p- and n-type materials, respectively, improves the thermoelectric quality factor for use in room temperature modules. As the electronic and thermal transports can vary substantially, the alloy composition is a key engineering parameter.
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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 for n-type material) has the highest thermoelectric figure of merit, zT, of any material around room temperature.
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Bismuth telluride and its alloys are widely used as materials for thermoelectric refrigeration. They are also the best materials for use in thermoelectric generators when the temperature of the heat source is moderate. The dimensionless figure of merit, ZT, usually rises with temperature, as long as there is only one type of charge carrier. Eventually, …
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We provide the rationale for possible significant improving efficiency of low-temperature thermoelectric generators (TEGs) based on bismuth-antimony telluride (Bi2Te3)x(Sb2Te3)1−x ternary alloys. It has been shown by experiments that using in TEGs of p-type...
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Keywords: bismuth telluride, thermoelectrics, electronic structures, transport modeling 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 for n-
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Bismuth telluride (Bi 2 Te 3) and its alloys have been investigated over the last several years and thus emerged as a matured material for commercial products for near-room temperature applications. However, the low performance of thermoelectric materials restricts their broader applications.
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High-purity bismuth telluride (Bi2Te3) nanostructures have been synthesized by a chemical reduction method with two processes: (1) co-precipitation by NaBH4 and (2) annealing under hydrazine vapor and nitrogen gas atmosphere at T = 300°C. Based on the use of nitric acid (HNO3) in the preparation of precursor solutions …
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