The Thermoelectric Properties of n-Type Bismuth …

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 Thermoelectric Properties of Bismuth Telluride

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 …

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 ...

The Thermoelectric Properties of Bismuth Telluride

Since thermoelectric technology will be greatly enhanced by improving Bi 2 Te 3 or finding a superior material, this review aims to identify and quantify the key material properties that make Bi 2 Te 3 such a good …

Bismuth Telluride and Its Alloys as Materials for Thermoelectric …

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, though, …

Tellurium as a high-performance elemental thermoelectric

Poudel, B. et al. High-thermoelectric performance of nanostructured bismuth antimony telluride bulk alloys. Science 320, 634–638 (2008). Article CAS ADS Google Scholar

Performance boost for bismuth telluride thermoelectric …

The lack of desirable diffusion barrier layers currently prohibits the long-term stable service of bismuth telluride thermoelectric devices in low-grade waste heat recovery. Here we propose a new ...

Staggered-layer-boosted flexible Bi2Te3 films with high

Room-temperature bismuth telluride (Bi2Te3) thermoelectrics are promising candidates for low-grade heat harvesting. However, the brittleness and inflexibility of Bi2Te3 are far reaching and bring ...

Bismuth(III) telluride powder, -325mesh, 99.99 trace metals …

Bismuth(III) telluride (Bi 2 Te 3) is a thermoelectric material, which acts as a topological insulator: a quantum material with an insulating bulky gap and gapless edge.It forms thin films by different techniques, which include chemical method, electrodeposition and molecular jet method.

Thermoelectric Properties of Bismuth Telluride Thin Films

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), evaporation, and …

Ultra-fast fabrication of Bi2Te3 based thermoelectric

The results demonstrate that FS combining with SPS is a promising method to prepare bismuth telluride based thermoelectric materials efficiently and economically.

Tailoring interfacial states for improved n-type bismuth telluride

Bismuth telluride (Bi 2 Te 3) is a well-known commercial TE material used for applications near room temperature. While noteworthy progress has been attained in the realm of p-type Bi 2 Te 3 -based materials, n-type Bi 2 Te 3-x Se x (BTS) alloys still have limited efficacy, lagging in TE performance and posing challenges to enhance the overall ...

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 …

Fabrication, micro-structure characteristics and transport properties

Bismuth Telluride (Bi 2 Te 3) is a commercially available thermoelectric material for low temperature applications and is widely employed in conventional industrial applications. It is a heavily ...

Bismuth(III) telluride powder, -325mesh, 99.99 trace metals …

Bismuth(III) telluride (Bi 2 Te 3) is a thermoelectric material, which acts as a topological insulator: a quantum material with an insulating bulky gap and gapless edge.It forms thin films by …

Synthesis of High Purity Bismuth Telluride (Bi2Te3

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 from primary materials, two syntheses were …

The Potential of Bismuth Telluride for Thermoelectric …

The research team replaced Se with antimony (Sb) as a doping material in n-type bismuth telluride, leveraging antimony's proven success in improving the performance of p-type bismuth telluride. During the production process, the team introduced "atomic defects" to stimulate electron formation and created "dislocation networks" to scatter ...

High-Thermoelectric Performance of Nanostructured Bismuth …

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°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 ...

Unraveling the dislocation core structure at a van der …

Tetradymite-structured chalcogenides such as bismuth telluride (Bi2Te3) are of significant interest for thermoelectric energy conversion and as topological insulators. Dislocations play a critical ...

Product Identification of Bismuth Telluride by Nitric Acid …

Bismuth telluride-based thermoelectric devices are the only thermoelectric devices that are currently used in large-scale commercial applications, 1 and they are widely used in consumer electronics, 2 communications, 3 and semiconductor refrigeration. 4 In the preparation of devices, bismuth telluride elements needs to be connected to copper electrodes by brazing. …

A flexible feature for the long-reigning thermoelectric …

Bismuth telluride (Bi 2 Te 3) has been a long-time champion material of thermoelectrics, impressively reigning for more than 60 years 2, 3, 4 — only the magnesium …

Bismuth telluride nanostructures: preparation, thermoelectric

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 from its bulk material. Therefore, …

Bismuth telluride nanostructures: preparation, …

and TE properties of bismuth telluride and bismuth telluride-based nanostructured materials have been on the increase [23–25]. However, for a TE material, the efficiency in energy conversion is determined by the TE figure-of-merit (Z) or the dimensionless TE figure-of-merit (ZT) given by ZT= σ2εT/κ, where ε and κ are electrical and

The Thermoelectric Properties of n-Type Bismuth …

Bismuth telluride is the dominant thermoelectric material for applications near room temperature due to its inherently low lattice thermal conductivity and high electronic weighted mobility [1]. Its performance is ultimately limited by the …

(PDF) Advances in bismuth-telluride-based …

Amongst thermoelectric materials, bismuth telluride (Bi2Te3) and its derivatives exhibit high figure of merit ZT values in the near-room-temperature region and show great potential for application ...

Magnetotransport and ARPES studies of the topological

Recently, the topological insulators (TIs) antimony telluride (Sb2Te3) and bismuth telluride (Bi2Te3) are attracting high interest for applications based on spin-charge interconversion mechanisms.

Bismuth telluride

Bismuth telluride (Bi 2 Te 3) is a grey powder that is a compound of bismuth and tellurium also known as Bismuth(III) telluride. It is a semiconductor which is an efficient thermoelectric material for refrigeration or portable power generation. The CAS registry number is [].The density is 7700 kg.m-3.It has a melting point of 573 C.

Mechanical Properties of p- and n-Type Bismuth Telluride …

There are data of doping bismuth telluride-based materials and p-type Bi 2 Te 3 –Sb 2 Te 3 solid solution and n-type Bi 2 Te 3 –Bi 2 Se 3 solid solution with various dispersing agents . Nanoparticles based on carbon, silicon, and various oxides are used as dispersing agents. One of the forms of carbon, namely, ...

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 …

Bi2Te3 Crystal

Bismuth Telluride (Bi₂Te₃) Developed at our facilities since early 2013 to optimize the perfect stoichiometry and stabilize the topological insulator state.Topological insulator is a new class of material, in which its bulk is insulating while its …

Enhancing thermoelectric properties of bismuth telluride …

XPS spectra bismuth telluride and germanium telluride films with and without a 300 °C anneal. Top row is as-deposited bismuth telluride and the second row is annealed bismuth telluride, with (a) and (c) showing the bismuth peak, and (b) and (d) the telluride peak.

Shifting up the optimum figure of merit of p-type bismuth telluride

The p-type bismuth telluride-based polycrystalline materials suiting for low-temperature power generations (near 380 K) have been obtained through Sb-alloying and HD, which suppresses the ...

Bismuth Telluride Thermoelectrics with 8% Module …

We demonstrate p- and n-type bismuth telluride (BiTe) alloys with high (zT) avg leading to efficient module performance for waste heat recovery application in the temperature range of 25 to 250°C. Results. Theoretically, the conversion efficiency of TEGs is enhanced by augmented temperature difference (ΔT) and (zT) avg (Figure 1 A).

A review on bismuth telluride (Bi

Bismuth Telluride (Bi 2 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 Bi 2 Te 3 nanostructure, a number of methods such as solvo and hydro …

The Thermoelectric Properties of Bismuth Telluride

This article reviews the key material properties and challenges of Bi2Te3, the best thermoelectric material near room temperature. It covers the electronic structure, defects, transport, and …

Bismuth Telluride

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 ...