Bismuth Telluride M

Bismuth telluride | Bi2Te3 - PubChem

Bismuth telluride appears as gray or black hexagonal platelets with a metallic luster or gray powder. mp: 586°C. Density: 7.8 g/cm3. An alloy of two metallic elements. Sometimes this is doped with selenium sulfide. The selenium sulfide (SeS) dopant alters the electrical properties, but has too low a concentration to affect the chemical properties.

Bismuth telluride - Wikipedia

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 topological insulator, and thus exhibits thickness-dependent physical properties.

Bismuth Telluride | AMERICAN ELEMENTS

Bismuth Telluride is a narrow gap layered semiconductor with high thermal conductivity. Recent research has confirmed that bismuth telluride may significantly increase the speed of microchips and be the basis for the emerging next generation technology know as "Spintronics". American Elements Bismuth Telluride products are generally available in most volumes and can be purchased in bulk ...

The Thermoelectric Properties of Bismuth Telluride

Bismuth telluride is the working material for most Peltier cooling devices and thermoelectric generators. This is because Bi 2Te 3 (or more precisely its alloys with Sb 2Te 3 for p-type and Bi 2Se 3 for n-type material) has the highest thermoelectric figure of merit, zT, of any material around room temperature.

A review on bismuth telluride (Bi2Te3) nanostructure for ...

Bismuth Telluride (Bi2 Te 3) is basically known as an efficient thermoelectric material. Nowadays, it has been attracted a great deal of interest in energy harvesting, chip cooling, chip sensing and other field of material science because of its potential applications. In order to produce Bi2 Te 3 nanostructure, a number of methods such as solvo ...

SAFETY DATA SHEET Bismuth Telluride (pieces)

Bismuth Telluride (pieces) 1. Identification Product identifier Product name Bismuth Telluride (pieces) Internal identification Replaces M-2230-070 CAS number 1304-82-1 Recommended use of the chemical and restrictions on use Application Exterior surface coating. Uses advised against No specific uses advised against are identified.

The Thermoelectric Properties of Bismuth Telluride

Bismuth telluride is the working material for most Peltier cooling devices and thermoelectric generators. This is because Bi 2Te 3 (or more precisely its alloys with Sb 2Te 3 for p-type and Bi 2Se 3 for n-type material) has the highest thermoelectric figure of merit, zT, of any material around room temperature.

4.5 Bismuth Telluride and its Alloys - TU Wien

Bismuth telluride is a narrow gap semiconductor with an indirect band gap of at . As most semiconductors, the temperature dependence of its band-gap is negative with a value of [ 159 , 160 , 161 ]. According to pseudopotential band structure calculations [ 162 ], both the highest valence band and lowest conduction band have six valleys.

The Thermoelectric Properties of n-Type Bismuth Telluride ...

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. The n-type Bi 2 Te 3-x Se alloy lags its p-type counterpart in thermoelectric ...

Bismuth Telluride on sales - Quality Bismuth Telluride ...

Bismuth Telluride, You can Buy good quality Bismuth Telluride , we are Bismuth Telluride distributor & Bismuth Telluride manufacturer from China market. Wuhan Xinrong New Materials Co.,Ltd. Professional “Advanced Functional Materials Supplier” In The World. Sales & Support Request A Quote - Email. Select Language. English French German Italian Russian Spanish Portuguese Dutch Greek ...

Surfactant-Mediated Electrodeposition of Bismuth …

21/05/2012· We report the synthesis of highly crystallographically textured films of stoichiometric bismuth telluride (Bi2Te3) in the presence of a surfactant, sodium lignosulfonate (SL), that resulted in the improved alignment of films in the (110) plane and offered good control over the morphology and roughness of the electrodeposited films. SL concentrations in the range 60–80 mg dm–3 at a …

High-thermoelectric performance of nanostructured …

The dimensionless thermoelectric figure of merit (ZT) in bismuth antimony telluride (BiSbTe) bulk alloys has remained around 1 for more than 50 years. We show that a peak ZT of 1.4 at 100 degrees C can be achieved in a p-type nanocrystalline BiSbTe bulk alloy. These nanocrystalline bulk materials were made by hot pressing nanopowders that were ball-milled from crystalline ingots under inert conditions. …

Thin Films of Bismuth-Telluride-Based Alloys | …

Thin films of bismuth telluride (Bi 2 Te 3), antimony telluride (Sb 2 Te 3), and bismuth selenide (Bi 2 Se 3) are expected to be useful as miniaturized thermoelectric power generators in energy-constrained embedded systems owing to their excellent electrical and thermal properties near 300 K [1, 2, 3, 4].Their alloys have rhombohedral tetradymite-type crystal structures with the space group ...

Bismuth telluride nanotubes and the effects on the ...

Nanotubes of quasilayered bismuth telluride compound were prepared by hydrothermal synthesis. Nanotubes have diameters smaller than 100 nm and spiral tube-walls. The low-dimensional morphology and hollow structure enable bismuth telluride nanotubes to be a potential thermoelectric material with a high figure of merit due to the efficient phonon blocking effect.

Flexible thermoelectric generators with inkjet-printed ...

Bismuth telluride (Bi 2 Te 3) and bismuth antimony telluride (Bi 0.5 Sb 1.5 Te 3) nanowires (NWs) are inkjet printed onto polyimide to form n-type and p-type legs for the TEGs. A post-print thermal annealing process is used to increase the thermoelectric performance of the printed NWs while eutectic gallium–indium (EGaIn) liquid metal contacts electrically connect the TEG legs in series. Annealing …

Realizing a thermoelectric conversion efficiency of 12% …

a State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China. E-mail: [email protected], [email protected] b University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, China.

The Thermoelectric Properties of n-Type Bismuth Telluride ...

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. The n-type Bi 2 Te 3-x Se alloy lags its p-type counterpart in thermoelectric ...

High-Performance Flexible Bismuth Telluride Thin Film …

Bismuth telluride 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. The synthesized Bi 2 Te 3 nanocrystals have a thickness of 35 ± 15 ...

Bismuth Telluride on sales - Quality Bismuth Telluride ...

Bismuth Telluride, You can Buy good quality Bismuth Telluride , we are Bismuth Telluride distributor & Bismuth Telluride manufacturer from China market. Wuhan Xinrong New Materials Co.,Ltd. Professional “Advanced Functional Materials Supplier” In The World. Sales & Support Request A Quote - Email. Select Language. English French German Italian Russian Spanish Portuguese Dutch Greek ...

Focal Series Reconstruction in Bismuth Telluride and Silicon

Bismuth telluride is a thermoelectric material with high coefficients at room temperature [4] and has recently been identified as a topological insulator [5], with rhombohedral crystal structure and space group R(-3)m with five atoms per unit cell. To understand the operation of focal series reconstruction of different software, a material with a well know crystal structure as silicon is also ...

Surfactant-Mediated Electrodeposition of Bismuth …

21/05/2012· We report the synthesis of highly crystallographically textured films of stoichiometric bismuth telluride (Bi2Te3) in the presence of a surfactant, sodium lignosulfonate (SL), that resulted in the improved alignment of films in the (110) plane and offered good control over the morphology and roughness of the electrodeposited films. SL concentrations in the range 60–80 mg dm–3 at a …

Bismuth telluride nanotubes and the effects on the ...

Nanotubes of quasilayered bismuth telluride compound were prepared by hydrothermal synthesis. Nanotubes have diameters smaller than 100 nm and spiral tube-walls. The low-dimensional morphology and hollow structure enable bismuth telluride nanotubes to be a potential thermoelectric material with a high figure of merit due to the efficient phonon blocking effect.

Thin Films of Bismuth-Telluride-Based Alloys | …

Thin films of bismuth telluride (Bi 2 Te 3), antimony telluride (Sb 2 Te 3), and bismuth selenide (Bi 2 Se 3) are expected to be useful as miniaturized thermoelectric power generators in energy-constrained embedded systems owing to their excellent electrical and thermal properties near 300 K [1, 2, 3, 4].Their alloys have rhombohedral tetradymite-type crystal structures with the space group ...

High-thermoelectric performance of nanostructured …

The dimensionless thermoelectric figure of merit (ZT) in bismuth antimony telluride (BiSbTe) bulk alloys has remained around 1 for more than 50 years. We show that a peak ZT of 1.4 at 100 degrees C can be achieved in a p-type nanocrystalline BiSbTe bulk alloy. These nanocrystalline bulk materials were made by hot pressing nanopowders that were ball-milled from crystalline ingots under inert conditions. …

تيلوريد البزموت - ويكيبيديا

(بالتحويل من Bismuth telluride) تيلوريد البزموت تلوريد له الصيغة Bi 2 Te 3 ، ويكون على شكل مسحوق ذي لون رمادي. وهذا المركب نصف ناقل يتميز بخواصه الكهرحرارية ، يستعمل في مجال التبريد وتوليد الطاقة غير الموضعي (المتنقل).

Phys. Rev. B 77, 125209 (2008) - Ab initio and molecular ...

Publisher's Note: Ab initio and molecular dynamics predictions for electron and phonon transport in bismuth telluride [Phys. Rev. B 77, 125209 (2008)] Bao-Ling Huang and Massoud Kaviany Phys. Rev. B 77, 129904 (2008)

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