Zr掺杂改善p型(BiSb)2(TeSe)3单晶热电性能

IF 1.4 4区材料科学 Q3 MATERIALS SCIENCE, CERAMICS

Science of Sintering Pub Date : 2023-01-01 DOI:10.2298/sos2301057p

E. Pozega, N. Vukovic, L. Gomidželović, Miloš Janošević, Milenko Jovanović, S. Marjanović, Milijana Mitrović

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引用次数: 0

摘要

为了研究Zr掺杂对p型Bi10.17Sb30.72 Zr0.35Te58.28Se0.48单晶热电性能的影响，采用Bridgman法制备了?n锭。采用基于范德保法的霍尔效应对铸锭不同区域的切割和切割试样进行了表征。第一次测量是在室温下用四个欧姆接触进行的，获得的结果在我们之前的研究中提出。在液氮温度下，银触点样品的载流子迁移率较高。单晶经塞贝克系数(S)、电导率(?)和电阻率(?)测量表征为?温度范围在40-320?C用自制的阻抗计。制备的单晶在300℃时的优值(Z)为1.22 × 10-3 K-1。

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Improving thermoelectric properties of p-type (BiSb)2(TeSe)3 single crystal by Zr doping

In order to study the effect of Zr doping on the thermoelectric properties of p-type Bi10.17Sb30.72 Zr0.35Te58.28Se0.48 single crystal, ?n ingot was prepared by Bridgman method. Cut and cleaved samples from different regions of ingot were characterized by a Hall Effect based on the Van der Pauw method. The first measurements were conducted with four ohmic contacts at room temperature and the obtained results were presented in our investigation, earlier. ?lso, high charge carriers mobility was obtained on the sample with silver contacts at the temperature of liquid nitrogen. Single crystal was characterized by Seebeck coefficient (S), conductivity (?) and resistivity (?) measurements as ? function of temperature in the range of 40-320?C by a home-made impedance meter. The prepared single crystal has a figure of merit (Z) of 1.22 x 10-3 K-1 at 300?C.

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来源期刊

Science of Sintering 工程技术-材料科学：硅酸盐

CiteScore

2.50

自引率

46.70%

发文量

审稿时长

3.3 months

期刊介绍： Science of Sintering is a unique journal in the field of science and technology of sintering. Science of Sintering publishes papers on all aspects of theoretical and experimental studies, which can contribute to the better understanding of the behavior of powders and similar materials during consolidation processes. Emphasis is laid on those aspects of the science of materials that are concerned with the thermodynamics, kinetics and mechanism of sintering and related processes. In accordance with the significance of disperse materials for the sintering technology, papers dealing with the question of ultradisperse powders, tribochemical activation and catalysis are also published. Science of Sintering journal is published four times a year. Types of contribution: Original research papers, Review articles, Letters to Editor, Book reviews.