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Bismuth telluride Bi2Te3 - PubChem

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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.

Molecular Formula: Bi2Te3

Bismuth Telluride AMERICAN ELEMENTS

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American Elements is a global manufacturer and distributor of advanced materials with a more than 35,000-page online product catalog and compendium of information on the chemical elements, advanced materials, and high technology applications. The company's headquarters and educational programs are based in Los Angeles, California. Its research and production ...Wikipedia

Bismuth (atomic symbol: Bi, atomic number: 83) is a Block P, Group 15, Period 6 element with an atomic radius of 208.98040. The number of electrons in each of

Compound Formula: Bi 2 Te 3

Tellurium Data Sheet - Mineral Commodity Summaries 2020

Potential sources of tellurium include bismuth telluride and gold telluride ores. Substitutes: Several materials can replace tellurium in most of its uses, but

Bismuth telluride - Wikipedia

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The English Wikipedia is the English-language edition of the free online encyclopedia Wikipedia. It was founded on 15 January 2001 as Wikipedia's first edition and, as of June 2021, has the most articles of any edition, at 6,352,901. As of August 2021, 11% of articles in all Wikipedias belong to the English-language edition. This share has gradually declined ...WikipediaOverviewProperties as a thermoelectric materialProperties as a topological insulatorOccurrence and preparationSee alsoExternal links

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.

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The Thermoelectric Properties of -Type Bismuth Telluride ...

The band gap and electronic transport in -and -type bismuth telluride alloys show important differences in compositional trends due to the details of their complex

Cited by: 20

(PDF) Thermal expansion of bismuth telluride

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ResearchGate is a European commercial social networking site for scientists and researchers to share papers, ask and answer questions, and find collaborators. According to a 2014 study by Nature and a 2016 article in Times Higher Education, it is the largest academic social network in terms of active users, although other services have more registered users, ...Wikipedia

The results of X-ray and dilatometric measurements of the thermal expansion of bismuth telluride in the temperature range of 4.2–850 K have been critically analyzed.

Compositional Fluctuations Mediated by Excess Tellurium in ...

About this site

ResearchGate is a European commercial social networking site for scientists and researchers to share papers, ask and answer questions, and find collaborators. According to a 2014 study by Nature and a 2016 article in Times Higher Education, it is the largest academic social network in terms of active users, although other services have more registered users, ...Wikipedia

Materials that are composed of p-type bismuth telluride, which are suitable for low-temperature power generation (near 380 K), were successfully obtained through

The Thermoelectric Properties of Bismuth Telluride ...

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

Cited by: 147

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

Cited by: 20

Bismuth Telluride - Sino Santech

Bismuth Telluride (Bi2Te3) is basically known as an efficient thermoelectric material. Nowadays, it has been attracted a great deal of interest in energy harvesting

Bismuth Telluride BiTe AMERICAN ELEMENTS

Bismuth (atomic symbol: Bi, atomic number: 83) is a Block P, Group 15, Period 6 element with an atomic radius of 208.98040. The number of electrons in each of Bismuth's shells is 2, 8, 18, 32, 18, 5 and its electron configuration is [Xe] 4f 14 5d 10 6s 2 6p 3. The bismuth atom has a radius of 156 pm and a Van der Waals radius of 207 pm.

Bismuth Telluride Market Report 2021 Market Growth ...

Global Bismuth Telluride Market – Competitive Landscape ... Our research study involved the extensive usage of both primary and secondary data sources for market surveys, estimates and for developing forecast. This report is based on in-depth qualitative and quantitative analyses of the Global Bismuth Telluride Market. We conducted interviews ...

BISMUTH TELLURIDE HAZARD SUMMARY WORKPLACE

Bismuth Telluride is a gray, crystalline (sand-like) solid. It is used as a semiconductor for thermoelectric cooling. REASON FOR CITATION * Bismuth Telluride is on the Hazardous Substance List because it is regulated by OSHA and cited by ACGIH, DOT and NIOSH.

Compositional Fluctuations Mediated by Excess Tellurium in ...

Materials that are composed of p-type bismuth telluride, which are suitable for low-temperature power generation (near 380 K), were successfully obtained through Sb-alloying, which suppresses ...

Title: Thermoelectric properties of the bismuth telluride ...

Apr 02, 2008  Abstract: Electronic structure of bismuth telluride nanowires with the growth directions [110] and [015] is studied in the framework of anisotropic effective mass method using the parabolic band approximation. The components of the electron and hole effective mass tensor for six valleys are calculated for both growth directions. For a square nanowire, in the temperature range from 77 K to

Band structure of bismuth telluride, bismuth selenide and ...

Estimates of 1.1 eV and 1.4 eV have been obtained for the spin orbit splitting of the respective valence and conduction bands involved in those transitions in bismuth telluride. Previous article in issue

The Thermoelectric Properties of Bismuth Telluride ...

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. Since thermoelectric technology will be greatly enhanced by improving Bi 2 Te 3 ...

Bismuth Telluride – Properties and Applications TRUNNANO

Oct 05, 2020  Bismuth telluride is a gray powder with the molecular formula Bi2Te3. Bismuth telluride is a semiconductor material, which has good electrical conductivity, but poor thermal conductivity. Although the risk of bismuth telluride is low, it can be fatal if ingested in large amounts. However, this material can allow electrons to move on its surface ...

bismuth telluride – Quality Supplier from China

Cooling Module Bismuth Telluride N / P Type Bi2Te3 Peltier Pellets Features: Symbol: Bi2Te3 CAS: 1304-82-1 Atomic Weight: 800.76 Group Bismuth 15 Tellurium - 16 Crystal Structure Hexagonal-Rhombohedral Lattice ...

Basic Thermoelectric Principles - Thermoelectric

In addition to Bismuth Telluride (Bi 2 Te 3), there are other thermoelectric materials including Lead Telluride (PbTe), Silicon Germanium (SiGe), and Bismuth-Antimony (Bi-Sb) alloys that may be used in specific situations. Figure (2.1) illustrates the relative performance or Figure-of-Merit of various materials over a range of temperatures.

The performance of bismuth telluride thermojunctions

The performance of bismuth telluride thermojunctions ... about 65' C. Estimates of the coefficient of performance for thermoelectric refrigeration and of the efficiency for thermo- electric generation will be made, and the possibility of further improvement hill be discussed.

The Optical Properties of Bismuth Telluride Infra-red ...

The Optical Properties of Bismuth Telluride 549 4.4. Refractive Index Many specimens showed well-defined transmission interference fringes and and these were used to calculate the refractive index n, using the relation, 2nt= NA where t is the sample thickness and N the fringe number.Approximate

Quasiparticle electronic structure of bismuth telluride in ...

Quasiparticle electronic structure of bismuth telluride in the GW approximation Emmanouil Kioupakis,1,2,3 Murilo L. Tiago,1,2,4 and Steven G. Louie1,2 1Department of Physics, University of ...

MIGRATION AND EFFECTS OF COPPER IN BISMUTH

The experimental results were used to estimate the over-all change in the electrical transport parameters (for example, carrier mobilities, effective masses, etc.) between the limits of no copper present and full compensation. ... on bismuth telluride are, however, sufficiently complicated to

BISMUTH TELLURIDE (UNDOPED, as Bi₂Te₃) Occupational ...

Dec 18, 2020  The stoichiometric factor for bismuth telluride from bismuth is 1.916. Samples collected for this compound are first analyzed gravimetrically. If the gravimetric result of a sample yields a concentration below the permissible exposure limit (PEL), the Salt Lake Technical Center will report the calculated air concentration for the requested ...

Bismuth Telluride AMERICAN ELEMENTS

Bismuth (atomic symbol: Bi, atomic number: 83) is a Block P, Group 15, Period 6 element with an atomic radius of 208.98040. The number of electrons in each of Bismuth's shells is 2, 8, 18, 32, 18, 5 and its electron configuration is [Xe] 4f 14 5d 10 6s 2 6p 3.

Bismuth Telluride Market Report 2021 Market Growth ...

Global Bismuth Telluride Market – Competitive Landscape ... Our research study involved the extensive usage of both primary and secondary data sources for market surveys, estimates and for developing forecast. This report is based on in-depth qualitative and quantitative analyses of the Global Bismuth Telluride Market. We conducted interviews ...

Compositional Fluctuations Mediated by Excess Tellurium in ...

Materials that are composed of p-type bismuth telluride, which are suitable for low-temperature power generation (near 380 K), were successfully obtained through Sb-alloying, which suppresses ...

Bismuth Telluride Crystal AMERICAN ELEMENTS

Bismuth Telluride Single Crystal is a monocrystalline, uniform form of bismuth selenide used as a semiconductor and a topological insulator (a material whose

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.

Bismuth Telluride – Properties and Applications TRUNNANO

Oct 05, 2020  Bismuth telluride is a gray powder with the molecular formula Bi2Te3. Bismuth telluride is a semiconductor material, which has good electrical conductivity, but poor thermal conductivity. Although the risk of bismuth telluride is low, it can be fatal if ingested in large amounts. However, this material can allow electrons to move on its surface ...

[PDF] The Thermoelectric Properties of Bismuth Telluride ...

Bismuth telluride is the working material for most Peltier cooling devices and thermoelectric generators. This is because Bi2Te3 (or more precisely its alloys with Sb2Te3 for p-type and Bi2Se3 for n-type material) has the highest thermoelectric figure of merit, zT, of any material around room temperature.

The Thermal Conductivity of Bismuth Telluride - IOPscience

Measurements 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 to the conduction of heat is considerably greater for specimens in which the charge carriers are intrinsically excited than for specimens in which most of the carriers arise from an impurity concentration; this can be ...

The Thermoelectric Properties of Bismuth Telluride ...

Apr 05, 2019  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.Since thermoelectric technology will be greatly enhanced by improving Bi 2

COVID-19 Global USA Bismuth Telluride Market Research by ...

Jun 04, 2021  Publisher estimates that the Bismuth Telluride market size will grow from xxx Million USD in 2020 to xxxx Million USD by 2025, and with a CAGR of xx%. The base year considered for this report is 2019, and the market forecast is projected from 2021 to 2025.

The Optical Properties of Bismuth Telluride Infra-red ...

The Optical Properties of Bismuth Telluride 549 4.4. Refractive Index Many specimens showed well-defined transmission interference fringes and and these were used to calculate the refractive index n, using the relation, 2nt= NA where t is the sample thickness and N the fringe number.Approximate

Materials Free Full-Text Bismuth Telluride and Its ...

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.

Identifying Optimal Strain in Bismuth Telluride ...

The thermoelectric properties of bismuth telluride thin film (BTTF) was tuned by inducing internal strain through a combination of combinatorial gradient thermal annealing (COGTAN) and machine learning. BTTFs were synthesized via magnetron sputter coating and then treated by COGTAN. The crystal stru