Effect of Annealing on the Electrical Conductivity and Thermoelectric Power of PbTe, SnTe, and Pb0.75Sn0.25Te Crystals

IF 0.7 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Inorganic Materials Pub Date : 2025-06-30 DOI:10.1134/S0020168525700281

G. Z. Bagiyeva, A. Sh. Abdinov, T. J. Aliyeva, J. Sh. Abdinov

引用次数: 0

Abstract

PbTe, SnTe, and Pb_0.75Sn_0.25Te single crystals have been grown and their electrical conductivity and thermoelectric power have been measured in the range 90–300 K before and after annealing. The results demonstrate that the conductivity of unannealed PbTe and Pb_0.75Sn_0.25Te crystals, its variation with temperature, and its type are determined mainly by structural defects formed during crystal growth and sample preparation, which can be eliminated by annealing. The electrical properties of unannealed and annealed SnTe crystals are determined mainly by acceptor vacancies on the tin site, whose concentration reaches 10²⁰ to 10²¹ cm^–3.

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退火对PbTe、SnTe和Pb0.75Sn0.25Te晶体电导率和热电性能的影响

制备了PbTe、SnTe和Pb0.75Sn0.25Te单晶，并在退火前后90 ~ 300 K范围内测量了它们的电导率和热电功率。结果表明：未退火PbTe和Pb0.75Sn0.25Te晶体的电导率、电导率随温度的变化及其类型主要取决于晶体生长和样品制备过程中形成的结构缺陷，这些缺陷可以通过退火消除。未退火和退火SnTe晶体的电学性质主要由锡位上的受体空位决定，锡位的浓度可达1020 ~ 1021 cm-3。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Inorganic Materials 工程技术-材料科学：综合

CiteScore

1.40

自引率

25.00%

发文量

审稿时长

3-6 weeks

期刊介绍： Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.