Vapor Phase Growth of High-Quality Bi-Te Compounds Using Elemental Bi and Te Sources: A Comparison Between High Vacuum and Atmospheric Pressure

Bismuth telluride (Bi 2 Te 3 ), traditionally used in the industry as thermoelectric material, has deserved much attention recently due to its properties as a topological insulator, a kind of material that might have relevant applications in spintronics or quantum computing, among other innovative u...

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Veröffentlicht in:Journal of electronic materials 2018-08, Vol.47 (8), p.4277-4281
Hauptverfasser: Concepción, O., Escobosa, A., de Melo, O.
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Escobosa, A.
de Melo, O.
description Bismuth telluride (Bi 2 Te 3 ), traditionally used in the industry as thermoelectric material, has deserved much attention recently due to its properties as a topological insulator, a kind of material that might have relevant applications in spintronics or quantum computing, among other innovative uses. The preparation of high-quality material has become a very important technological task. Here, we compare the preparation of Bi 2 Te 3 by physical vapor transport from the evaporation of elemental Bi and Te sources, under either low pressure or atmospheric pressure. The layers were characterized by different techniques to evaluate its structural properties. As a result, it is concluded that, as a consequence of the different transport regimes, films grown at atmospheric pressure present better crystal quality.
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The preparation of high-quality material has become a very important technological task. Here, we compare the preparation of Bi 2 Te 3 by physical vapor transport from the evaporation of elemental Bi and Te sources, under either low pressure or atmospheric pressure. The layers were characterized by different techniques to evaluate its structural properties. 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subjects 18th International Conference on II-VI Compounds and Related Materials
Atmospheric pressure
Bismuth compounds
Bismuth tellurides
Characterization and Evaluation of Materials
Chemistry and Materials Science
Electronics and Microelectronics
High vacuum
Instrumentation
Intermetallic compounds
Low pressure
Materials research
Materials Science
Optical and Electronic Materials
Quantum computing
Solid State Physics
Spintronics
Tellurides
Thermoelectric materials
Topical Collection: 18th International Conference on II-VI Compounds
Transport
Vapor phases
title Vapor Phase Growth of High-Quality Bi-Te Compounds Using Elemental Bi and Te Sources: A Comparison Between High Vacuum and Atmospheric Pressure
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