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 SM ISO690:2012NIKOLAEVA, Albina, KONOPKO, Leonid, HUBER, Tito, GHERGISHAN, Igor, PARA, Gheorghe, NIKA, Denis, KOROMYSLICHENKO, Tatiana. Topological Insulators Based on Layers and Foils for Thermoelectric Microcooling Devices. In: Proceedings of the International Semiconductor Conference: CAS, 11-13 octombrie 2023, Sinaia. New Jersey: Institute of Electrical and Electronics Engineers Inc., 2023, Ediția 46, pp. 263-266. ISBN 979-835032395-5. DOI: https://doi.org/10.1109/CAS59036.2023.10303669 |
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 Proceedings of the International Semiconductor Conference Ediția 46, 2023 |
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Conferința "46th International Semiconductor Conference" Sinaia, Romania, 11-13 octombrie 2023 | ||||||
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| DOI:https://doi.org/10.1109/CAS59036.2023.10303669 | ||||||
| Pag. 263-266 | ||||||
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We preset the results of the study on thermoelectric properties and oscillatory effects layers and foils) based on p-type Bi2Te3 topological insulators and n-type Bi0.84Sb0.16 foils (d=10-20 μ m). Analysis of the Shubnikov de Haas oscillations of p-type Bi2Te3 single-crystal layers has confirmed the presence of surface states in layers with a high quantum charge carrier mobility of up to 20 × 103 cm2/(V s) and a Fermi surface anisotropy of A = 4, which are characteristic of bulk topological insulator. It has been revealed that the thermal conductivity of the foils in a temperature range of 300 100 K remains constant. Based on a technology developed by the authors for forming unsupported p-type Bi2Te3 single-crystal micro-layers and an n-type Bi0.84Sb0.16 foils a device was constructed that provides a temperature gradient of ?T = 9 K over an area of 0.01 cm2. Structures based on Bi2Te3 can be used to design miniature sensors for thermoelectric devices, such as thermoelectric coolers, in particular, for cooling a computer processor. |
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| Cuvinte-cheie Antimony compounds, Carrier mobility, Electric insulators, Quantum theory, single crystals, Tellurium compounds, thermal conductivity, Thermoelectric equipment, thermoelectricity |
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