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 …
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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.Since thermoelectric technology will …
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This article reviews the key material properties and challenges of Bi2Te3, the best thermoelectric material near room temperature. It covers the electronic structure, …
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— Bismuth telluride (Bi 2 Te 3) is a promising thermoelectric material for applications near room temperature.To increase the thermoelectric performance of this material, its dimensions and thermal ...
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— 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 …
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— The barrier layer between thermoelectric (TE) legs and electrodes has crucial impact on the electrothermal conversion efficiency of the TE device; however, the interfacial reaction of the Ni metal barrier layer with TE legs in traditional Bi2Te3-based devices is harmful to the device performance. Herein, a high-quality barrier layer of a Ni-based …
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— 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 ...
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Bismuth telluride (Bi 2 Te 3) 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 …
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— Bismuth telluride Bi 2 Te 3 consists of heavy atoms; that is one of the reasons for its high thermoelectric efficiency. Crystal structure of Bi 2 Te 3 (Fig. 1.1, left) is characterized by rhombohedral actual primitive cell (Fig. 1.1, top right).Lattice constant c of the rhombohedral cell (between bottom and top points) equals to approximately 5.08 …
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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 …
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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 …
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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-based alloys are the most widely used commercial thermoelectric (TE) material for room temperature refrigeration. Here, we successfully shift up the optimum figure of merit of n-type bismuth-telluride-based TE materials for mid-temperature power generation.
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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 from primary …
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— In this paper, a p-type bismuth telluride matrix was synthesized only by cold pressing and annealing. Suitable doping and band engineering can be applied to further improve the thermoelectric performance. Download: Download high-res image (126KB) Download: Download full-size image;
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— 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 …
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— Tetradymite-structured chalcogenides such as bismuth telluride (Bi2Te3) are of significant interest for thermoelectric energy conversion and as topological insulators. Dislocations play a critical ...
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— 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).
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— Learn about bismuth telluride (Bi2Te3), the most mature thermoelectric material for cooling and power generation. Find out its crystal structure, band structure, …
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Bismuth telluride-based thermoelectric (TE) materials have been commercially applied in near-room temperature refrigeration. However, enhancing their TE performance remains crucial for expanding their application fields. Nanocomposite strategy has been widely reported as an effective approach to improving the TE performance of bismuth telluride ...
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PGEs occur (essentially as Pt–Fe alloy, Pt–Pd sulfide, and Pt–Pd bismuth telluride) at the contact between the base-metal sulfides and silicates or oxides, and included mostly within pentlandite and pyrrhotite, and less significant in chalcopyrite. The multidisciplinary analysis using three-dimensional (3-D) X-ray tomography, and in situ ...
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— 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 ...
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— 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 …
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— Bismuth telluride (Bi2Te3) is an available thermoelectric material with the lowest band gap among bismuth chalcogenides, revealing a broad application in photocatalysis. Unfortunately, its size and morphology related to a radio-catalysis property have rarely been explored. Herein, an ethylenediaminetetraacetic acid (EDTA)-assisted …
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— 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 ...
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Bi2Te3 (Bismuth Telluride) Bi2Te3 is a topological insulator and has thermoelectric properties at RT. The layers are stacked together via van der Waals interactions and can be exfoliated into thin 2D layers. Bi2Te3 belongs to the group-15 post-transition metal trichalcogenides. To buy ...
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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, though, …
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— This article summarizes the progress and challenges of Bi 2 Te 3 and its derivatives as thermoelectric materials and devices. It covers the material, structural, …
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— Bismuth telluride (Bi 2 Te 3) is the most mature thermoelectric material that has been well commercialized for electronic cooling and has gradually been used for power generation using low- and medium-temperature waste heat.In the last decade, extensive efforts have been devoted to its performance enhancement, which attracts interests from …
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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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— This work facilitates the development of the TE module by presenting a novel approach to obtaining bismuth telluride-based thermoelectric materials with superior thermoelectric and mechanical properties. Conflict of Interest. The authors declare no conflict of interest. Open Research.
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BISMUTH TELLURIDE may emit toxic fumes of tellurium when heated to decomposition. Incompatible with strong oxidizing agents such as nitric acid or bromine, chlorine or fluorine. Moderate fire hazard by reaction with such materials. May react with strong acids to evolve toxic gases; may react slowly with water to evolve toxic gases.
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Bismuth telluride (Bi2Te3) | Bi2Te3 | CID 6379155 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological ...
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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.
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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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