The effect of powder pre-treatment on the mechanical and thermoelectric properties of spark plasma sintered N-type bismuth telluride

AbdelNabi, Ahmed Ali; Lakhian, Vickram; McDermid, Joseph R.; Cotton, James

doi:10.1016/j.jallcom.2021.159782

Cited by 6 publications

(3 citation statements)

References 34 publications

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“…174 The microwave technique was also adopted to synthesize thermoelectric nanopowders of a Bi 2−x Sb x Te 3 system. A unique transition was observed from p-to n-type semiconducting with ZT values of 1.04 and 0.4, respectively, for the n and p types at 448 K. 175 Ahmed et al 176 used spark plasma sintering for the preparation of n-type (Bi 0.95 Sb 0.05 ) 2 (Se 0.05 Te 0.95 ). The Seebeck coefficient was found to increase by 12% relative to the sample prepared by dry conditioning.…”

Section: Thermoelectric Propertiesmentioning

confidence: 99%

“…The dopant elements indium, tin, antimony (cations), and Copyright (2021) with permission from Elsevier. 176 selenium and tellurium (anions) were selected based on their ionic radius and the similar properties of their outer shells. Sn, In, and Sb are known to be unique cases of resonant impurities in Bi 2 Te 3 and Bi 2 Se 3 semiconductors.…”

Section: Effect Of Point Defect and Effective Mass (M * ) On Carrier ...mentioning

confidence: 99%

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A Review on Doped/Composite Bismuth Chalcogenide Compounds for Thermoelectric Device Applications: Various Synthesis Techniques and Challenges

Hegde

Prabhu

2022

J. Electron. Mater.

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One of the global demands of primary research objectives is to achieve human energy harvesting and self-powered wearable technologies. Bismuth chalcogenides are the trending materials for thermoelectric generators and Peltier coolers due to their notable thermoelectric figure of merit in the low- and room-temperature range. Systematic alloying of bismuth chalcogenides leads to a substantial change in their electrical and thermal transport properties. The high thermoelectric figure of merit (ZT) observed in bismuth chalcogenides is due to the rhombohedral crystal structure, lower effective mass, low thermal conductivity, and large band degeneracy. This review is aimed at identifying and quantifying different techniques for effectively improving the thermoelectric properties of doped/composite bismuth chalcogenide compounds. The review also examines the various synthesis methods including ball milling (BM), spark plasma sintering (SPS), self-propagating high-temperature synthesis (SHS), soft chemical reaction, hydrothermal reaction, melt growth (MG), melt spinning (MS), sintering and consolidated synthesis, and hot extrusion, with their respective figures of merit. Since device modification is a challenging task, this report reviews the present research on bismuth chalcogenide alloys to benchmark future development using various techniques. Graphical Abstract

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Section: Thermoelectric Propertiesmentioning

confidence: 99%

Section: Effect Of Point Defect and Effective Mass (M * ) On Carrier ...mentioning

confidence: 99%

A Review on Doped/Composite Bismuth Chalcogenide Compounds for Thermoelectric Device Applications: Various Synthesis Techniques and Challenges

Hegde

Prabhu

2022

J. Electron. Mater.

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“…However, when Bi 2 Te 3 is oxidized, oxygen atoms replace Te 2 in the quintuple layer (-Te 1 -Bi-Te 2 -Bi-Te 1 -) and act as donors to increase the n, which is the primary reason for the Seebeck coefficient to decrease. Moreover, the defects induced by oxidation would enhance carrier scattering and thus reduce the μ [124][125][126][127], which would ultimately deteriorate The TE performance. Therefore, it is important to prevent oxidation during the ED process.…”

Section: Oxidation Preventionmentioning

confidence: 99%

Recent advances of electrodeposition of Bi₂Te₃and its thermoelectric applications in miniaturized power generation and cooling

Shi

Zheng

Wang

et al. 2022

International Materials Reviews

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Thermoelectric (TE) technology enables direct conversion between thermal and electrical energies and thus has been regarded as an alternative for energy harvesting and refrigeration. Bismuth telluride (Bi 2 Te 3 ) is the most widely used TE material at room temperature due to its high figure of merit (∼1). Since the first publication on the electrodeposition of Bi 2 Te 3 films in 1994, a large number of publications has emerged in the last two decades, owing to its advantages such as simple and safe preparation, high deposition rate, convenient micromachining, good compatibility to semiconductor microfabrication techniques and so on. This article reviews the recent research progress in the electrodeposition of Bi 2 Te 3 and its application in TE devices. Additionally, an outlook towards the future development of this area has also been discussed.

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Thermally Sprayed Functional Coatings and Multilayers: A Selection of Historical Applications and Potential Pathways for Future Innovation

Gildersleeve

Vaßen

2023

J Therm Spray Tech

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Thermal spray coatings are material systems with unique structures and properties that have enabled the growth and evolution of key modern technologies (i.e., gas turbines, structurally integrated components, etc.). The inherent nature of these sprayed coatings, such as their distinctive thermal and mechanical properties, has been a driving force for maintaining industrial interest. Despite these benefits and proven success in several fields, the adoption of thermal spray technology in new applications (i.e., clean energy conversion, semiconductor thermally sprayed materials, biomedical applications, etc.) at times, however, has been hindered. One possible cause could be the difficulty in concurrently maintaining coating design considerations while overcoming the complexities of the coatings and their fabrication. For instance, a coating designer must consider inherent property anisotropy, in-flight decomposition of molten material (i.e., loss of stoichiometry), and occasionally the formation of amorphous materials during deposition. It is surmisable for these challenges to increase the risk of adoption of thermal spray technology in new fields. Nevertheless, industries other than those already mentioned have benefited from taking on the risk of implementing thermal spray coatings in their infrastructure. Benefits can be quantified, for example, based on reduced manufacturing cost or enhanced component performance. In this overview paper, a historical presentation of the technological development of thermal spray coatings in several of these industries is presented. Additionally, emerging industries that have not yet attained this level of thermal spray maturation will also be discussed. Finally, where applicable, the utility and benefits of multilayer functional thermal spray coating designs will be demonstrated.

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The effect of powder pre-treatment on the mechanical and thermoelectric properties of spark plasma sintered N-type bismuth telluride

Cited by 6 publications

References 34 publications

A Review on Doped/Composite Bismuth Chalcogenide Compounds for Thermoelectric Device Applications: Various Synthesis Techniques and Challenges

A Review on Doped/Composite Bismuth Chalcogenide Compounds for Thermoelectric Device Applications: Various Synthesis Techniques and Challenges

Recent advances of electrodeposition of Bi₂Te₃and its thermoelectric applications in miniaturized power generation and cooling

Thermally Sprayed Functional Coatings and Multilayers: A Selection of Historical Applications and Potential Pathways for Future Innovation

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The effect of powder pre-treatment on the mechanical and thermoelectric properties of spark plasma sintered N-type bismuth telluride

Cited by 6 publications

References 34 publications

A Review on Doped/Composite Bismuth Chalcogenide Compounds for Thermoelectric Device Applications: Various Synthesis Techniques and Challenges

A Review on Doped/Composite Bismuth Chalcogenide Compounds for Thermoelectric Device Applications: Various Synthesis Techniques and Challenges

Recent advances of electrodeposition of Bi2Te3and its thermoelectric applications in miniaturized power generation and cooling

Thermally Sprayed Functional Coatings and Multilayers: A Selection of Historical Applications and Potential Pathways for Future Innovation

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Product

Resources

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Recent advances of electrodeposition of Bi₂Te₃and its thermoelectric applications in miniaturized power generation and cooling