title: ÐÐ»Ð°Ð·Ð¼ÐµÐ½Ð½ÑÐµ ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ñ Ð¸ Ð¸Ñ Ð¿ÑÐ¾ÑÐ²Ð»ÐµÐ½Ð¸Ðµ Ð² ÑÐ¿ÐµÐºÑÑÐ°Ñ Ð¾ÑÑÐ°Ð¶ÐµÐ½Ð¸Ñ Ð² ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐºÑÑÐ¸ÐºÐ°Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Plasma oscillations and their manifestation in reflection spectra in thermoelectrics
Creators: name: ÐÑÐ·Ð½ÐµÑÐ¾Ð²Ð°, ÐÐ°ÑÑÑ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÑÐ²Ð¾
ÑÐ¿ÐµÐºÑÑ Ð¾ÑÑÐ°Ð¶ÐµÐ½Ð¸Ñ
ÑÐµÐ»Ð»ÑÑÐ¸Ð´ Ð²Ð¸ÑÐ¼ÑÑÐ°
ÑÐµÐ¾ÑÐ¸Ñ ÐÑÑÐ´Ðµ-ÐÐ¾ÑÐµÐ½ÑÐ°
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ÑÐ¾Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ñ ÐÑÐ°Ð¼ÐµÑÑÐ° ÐÑÐ¾Ð½Ð¸Ð³Ð°
thermoelectricity
reflection spectrum
bismuth telluride
Drude-Lorentz theory
IR spectrometer
Kramers Kronig relations

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description: The topic of the final qualifying work: "Plasma oscillations and their manifes-tation in the reflection spectra in thermoelectrics". Bismuth telluride is a semiconductor material used in low-temperature ther-moelectric generators in the temperature intervals T=200-600 K. Despite the fact that the crystals are well studied, its features, such as the band structure, still remain controversial. The work is devoted to the study of the optical properties of solid solutions of bismuth and antimony chalcogenides, as well as a solid solution of an-timony telluride with an admixture of lead Sb2Te3-PbTe, which is a homogeneous hole-type semi-conductor. The reflection spectra for various solid solutions are measured, after which the dielectric function and the absorption spectra of the crys-tals are constructed using the Kramers-Kronig relation. The reflection spectrum of a single crystal of bismuth telluride with tin ad-mixture was measured. By processing in various software packages, such as: Wolf-ram Mathematica, Matlab, the values of the optical parameters of a single crystal were obtained.