title: ÐÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ ÑÑÑÑÐºÑÑÑÑ Ð¸ ÑÐ¸Ð·Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ²Ð¾Ð¹ÑÑÐ² ÑÑÐµÑ -ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½ÑÐ½ÑÑ Ñ Ð°Ð»ÑÐºÐ¾Ð³ÐµÐ½Ð¸Ð´Ð½ÑÑ ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐºÑÑÐ¸ÐºÐ¾Ð²
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: Features of the structure and properties of ternary chalcogenide thermoelectrics
Creators: name: ÐÐ²Ð¾ÑÐµÑÐºÐ¾Ð², ÐÐµÐ¾ÑÐ³Ð¸Ð¹
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: 2022
Subjects: ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ñ
ÐºÑÐ¸ÑÑÐ°Ð»Ð» pbsb2te4
Ð¿Ð¾Ð»ÑÐ¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¸Ðº
ÑÐ²Ð»ÐµÐ½Ð¸Ðµ Ð¿ÐµÑÐµÐ½Ð¾ÑÐ°
Ð·Ð¾Ð½Ð½Ð°Ñ ÑÑÑÑÐºÑÑÑÐ°
thermoelectric materials
crystal pbsb2te4
semiconductor
transport propetiers
band structure

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«ÐÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ ÑÑÑÑÐºÑÑÑÑ Ð¸ ÑÐ²Ð¾Ð¹ÑÑÐ² ÑÑÑÑÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½ÑÐ½ÑÑ ÑÐ°Ð»ÑÐºÐ¾Ð³ÐµÐ½Ð¸Ð´Ð½ÑÑ ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐºÑÑÐ¸ÐºÐ¾Ð²Â». Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ñ Ð´Ð°Ð½Ð½ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¾ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ½ÑÑ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÑÑ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÐºÐ¸Ð½ÐµÑÐ¸ÑÐµÑÐºÐ¸Ñ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½ÑÐ¾Ð² Ð¸ ÑÐ¿ÐµÐºÑÑÐ¾Ð² ÐÐ-Ð¾ÑÑÐ°Ð¶ÐµÐ½Ð¸Ñ R(Î½) ÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð¾Ð² PbSb2Te4. ÐÐ±ÑÑÐ¶Ð´Ð°ÐµÑÑÑ ÑÐ¾ÑÐ¼Ð° Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐ¸ Ð¤ÐµÑÐ¼Ð¸. ÐÑÐµÐ½ÐµÐ½Ð° Ð°Ð½Ð¸Ð·Ð¾ÑÑÐ¾Ð¿Ð¸Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð¼Ð°ÑÑÑ Ð¾ÑÐ²ÐµÑÑÑÐ¸Ð¹ Ð¸ Ð²ÑÐµÐ¼ÐµÐ½Ð¸ ÑÐµÐ»Ð°ÐºÑÐ°ÑÐ¸Ð¸. ÐÐ¾Ð´ÑÐ²ÐµÑÐ¶Ð´ÐµÐ½Ð° ÑÐ»Ð¾Ð¶Ð½Ð°Ñ ÑÑÑÑÐºÑÑÑÐ° Ð²Ð°Ð»ÐµÐ½ÑÐ½Ð¾Ð¹ Ð·Ð¾Ð½Ñ, ÑÑÐ¾ÑÐ½ÐµÐ½Ñ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ ÑÑÐ¸Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð². ÐÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ½ÑÐµ ÑÐµÐ½ÑÐ³ÐµÐ½Ð¾Ð²ÑÐºÐ¸Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÑÑÑÐºÑÑÑÑ Ð¸ ÑÐ¾ÑÑÐ°Ð²Ð° Ð¾Ð±ÑÐ°Ð·ÑÐ¾Ð² PbSb2Te4 Ð´Ð°Ð»Ð¸ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÑ ÑÑÐ¾ÑÐ½Ð¸ÑÑ ÑÐµÐ°Ð»ÑÐ½ÑÑ ÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÑÑ ÑÑÑÑÐºÑÑÑÑ Ð¸ Ð¾Ð±ÑÑÑÐ½Ð¸ÑÑ ÑÑÐ´ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹ Ð² ÑÐ¿ÐµÐºÑÑÐ°Ñ ÐÐ-Ð¾ÑÑÐ°Ð¶ÐµÐ½Ð¸Ñ. ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ ÑÐ°Ð±Ð¾ÑÑ: ÐÐ·ÑÑÐµÐ½Ð¸Ðµ ÑÑÑÑÐºÑÑÑÑ Ð¿Ð»ÐµÐ½Ð¾Ðº ÑÐ°Ð»ÑÐºÐ¾Ð³ÐµÐ½Ð¸Ð´Ð½ÑÑ ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð². ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸ ÑÐ¸Ð·Ð¸ÐºÐ¾-ÑÐ¸Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ²Ð¾Ð¹ÑÑÐ² Ð¾Ñ ÑÑÑÑÐºÑÑÑÐ½ÑÑ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹ ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð². ÐÑÐµÐ½ÐºÐ° ÑÐ¶Ðµ Ð¸Ð¼ÐµÑÑÐ¸ÑÑÑ ÑÐ²Ð¾Ð¹ÑÑÐ² Ð¸ Ð¸Ñ Ñ Ð°Ð½Ð¸Ð·Ð¾ÑÑÐ¾Ð¿Ð¸Ð¸ Ð² ÑÐµÑÐ¼Ð¾ÑÐµÐºÑÑÐ¸ÐºÐ°Ñ. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ ÑÐµÐ½ÑÐ³ÐµÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹ ÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð¾Ð² PbSb2Te4 Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÐ°Ð½ÐµÐµ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÑ Ð´Ð°Ð½Ð½ÑÑ Ð¾ ÐºÐ¸Ð½ÐµÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐ²Ð»ÐµÐ½Ð¸ÑÑ Ð¸ ÐÐ-Ð¾ÑÑÐ°Ð¶ÐµÐ½Ð¸ÑÑ ÑÑÐ¾ÑÐ½ÐµÐ½Ð° ÑÑÑÑÐºÑÑÑÐ° Ð²Ð°Ð»ÐµÐ½ÑÐ½Ð¾Ð¹ Ð·Ð¾Ð½Ñ Ð¸ ÐµÐµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ (ÑÑÑÐµÐºÑÐ¸Ð²Ð½ÑÐµ Ð²ÐµÑÐ° Ð»ÐµÐ³ÐºÐ¸Ñ Ð¸ ÑÑÐ¶ÐµÐ»ÑÑ Ð¾ÑÐ²ÐµÑÑÑÐ¸Ð¹, ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ½Ð°Ñ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÑ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð·Ð¾ÑÐ° Ð¼ÐµÐ¶Ð´Ñ Ð·Ð¾Ð½Ð°Ð¼Ð¸ ÎEVÂ (T)).
description: The topic of the final qualification work: "Features of the structure and properties of ternary chalcogenide thermoelectrics". This paper presents research data on the temperature dependencies of the basic kinetic coefficients and IR reflection spectra R(Î½) of PbSb2Te4 crystals. The shape of the Fermi surface is discussed. The anisotropy of the effective mass of the holes and the relaxation time are evaluated. Complex X-ray studies of the structure and composition of PbSb2Te4 samples made it possible to clarify the real crystal structure and explain a number of features in IR reflection spectra. Problems that were solved during the work: Study of the structure of films of chalcogenide thermoelectric materials. Study of the dependence of physicochemical properties on the structural features of thermoelectric materials. Evaluation of existing properties and their p anisotropy in thermoeectricsAs a result of X-ray studies of PbSb2Te4 crystals and analysis of previously obtained experimental data on kinetic phenomena and IR reflections, the structure of the valence band and its parameters (effective weights of light and heavy holes, temperature dependence of the energy gap between the zones ÎEVÂ (T)) were clarified.