Influence of Grain Size Distribution on the Lattice Thermal Conductivity of Bi2Te3-Sb2Te3-Based Nanostructured Materials

被引：9

作者：

Bulat, L. P. ^{[1
]}

Osvenskii, V. B. ^{[2
]}

Pshenai-Severin, D. A. ^{[3
,4
]}

机构：

[1] Natl Res Univ Informat Technol Mech & Opt, St Petersburg 197101, Russia

[2] Fed State Res & Design Inst Rare Met Ind Giredmet, Moscow 119017, Russia

[3] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[4] St Petersburg State Polytech Univ, St Petersburg 195251, Russia

来源：

PHYSICS OF THE SOLID STATE | 2013年 / 55卷 / 12期

基金：

俄罗斯基础研究基金会;

关键词：

HIGH-THERMOELECTRIC PERFORMANCE; SCATTERING; TELLURIUM; FIGURE; MERIT;

D O I：

10.1134/S1063783413120081

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The change of the lattice thermal conductivity of bulk nanostructured materials based on Bi2Te3-Sb2Te3 solid solutions with grain size distribution has been studied. These materials have a polycrystalline structure with grain sizes ranging from a few tens of a nanometer to a few micrometers. Large grains may contain inclusions or consist of several smaller parts which can be identified with coherent scattering regions seen in X-ray diffraction. The change of the lattice thermal conductivity mediated by additional scattering by inclusions and grain boundaries has been calculated. This calculation allows for the effect of nanoparticle size distribution. The calculated estimates are compared with the available experimental data.

引用

页码：2442 / 2449

页数：8

共 30 条

[1] Structure and Transport Properties of Bulk Nanothermoelectrics Based on Bi x Sb2-x Te3 Fabricated by SPS Method [J].

Bulat, L. P. ;

Drabkin, I. A. ;

Karatayev, V. V. ;

Osvenskii, V. B. ;

Parkhomenko, Yu. N. ;

Lavrentev, M. G. ;

Sorokin, A. I. ;

Pshenai-Severin, D. A. ;

Blank, V. D. ;

Pivovarov, G. I. ;

Bublik, V. T. ;

Tabachkova, N. Yu. .

JOURNAL OF ELECTRONIC MATERIALS, 2013, 42 (07) :2110-2113

[2] Energy Filtration of Charge Carriers in a Nanostructured Material Based on Bismuth Telluride [J].

Bulat, L. P. ;

Drabkin, I. A. ;

Karataev, V. V. ;

Osvenskii, V. B. ;

Parkhomenko, Yu. N. ;

Pshenai-Severin, D. A. ;

Pivovarov, G. I. ;

Tabachkova, N. Yu. .

PHYSICS OF THE SOLID STATE, 2011, 53 (01) :29-34

[3] Effect of boundary scattering on the thermal conductivity of a nanostructured semiconductor material based on the Bi x Sb2-x Te3 solid solution [J].

Bulat, L. P. ;

Drabkin, I. A. ;

Karataev, V. V. ;

Osvenskii, V. B. ;

Pshenai-Severin, D. A. .

PHYSICS OF THE SOLID STATE, 2010, 52 (09) :1836-1841

[4]

Bulat L. P., 2009, J THERMOELECTRICITY, V3, P67

[5]

Bulat L. P., 2008, P 4 EUR C THERM PAR, pI2

[6]

Bulat L.P., 2011, P 9 EUR C THERM THES, pA02P

[7] MODEL FOR LATTICE THERMAL CONDUCTIVITY AT LOW TEMPERATURES [J].

CALLAWAY, J .

PHYSICAL REVIEW, 1959, 113 (04) :1046-1051

[8] Grain-boundary resistivity versus grain size distribution in three-dimensional polycrystals [J].

Dezanneau, G ;

Morata, A ;

Tarancón, A ;

Salleras, M ;

Peiró, F ;

Morante, JR .

APPLIED PHYSICS LETTERS, 2006, 88 (14)

[9]

Goldsmid H. J., 1995, PROC 14 INT C THERMO, P16

[10]

Goltsman B.M., 1973, Thermoelectric Semiconductor Materials Based on Bi2Te3

← 1 2 3 →