Thermoelectric properties of dense Sb-doped SnO2 ceramics

被引：41

作者：

Rubenis, Kristaps ^{[1
]}

Populoh, Sascha ^{[2
,3
]}

Thiel, Philipp ^{[2
]}

Yoon, Songhak ^{[2
]}

Mueller, Ulrich ^{[4
]}

Locs, Janis ^{[1
]}

机构：

[1] Riga Tech Univ, Fac Mat Sci & Appl Chem, Inst Gen Chem Engn, 14-24 Azenes St, LV-1048 Riga, Latvia

[2] Empa, Swiss Fed Labs Mat Sci & Technol, Lab Mat Energy Convers, Uberlandstr 129, CH-8600 Dubendorf, Switzerland

[3] ABB Switzerland Ltd, Semicond, Fabrikstr 3, Lenzburg, Switzerland

[4] Empa, Swiss Fed Labs Mat Sci & Technol, Lab Nanoscale Mat Sci, Uberlandstr 129, CH-8600 Dubendorf, Switzerland

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 692卷

关键词：

SnO2; Sb-doped SnO2; Thermoelectric properties; Microstructure; Spark plasma sintering; X-RAY; OXIDE; DENSIFICATION; POWDER; CONDUCTIVITY; PERFORMANCE; ADSORPTION; SURFACE;

D O I：

10.1016/j.jallcom.2016.09.062

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present study thermoelectric properties of spark plasma sintered and subsequently air-annealed Sn1-xSbxO2 (x = 0, 0.01, 0.03, 0.05) ceramic samples were characterized. It was observed that addition of Sb greatly affects density, microstructure and thermoelectric properties of SnO2. Grain size decreases and the microstructure becomes more homogeneous with increasing Sb content in the Sn1-xSbxO2 samples from x = 0.01 to 0.05. The thermal conductivity and Seebeck coefficient of the Sb doped samples decreases with an increase in Sb concentration, while electrical conductivity increases up to a maximum at Sb doping level of x = 0.03 and then decreases at x = 0.05. The highest thermoelectric figure of merit of ZT approximate to 0.06 at 1073 K was exhibited by the sample of composition Sn0.99Sb0.01O2. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：515 / 521

页数：7

共 42 条

[1] Effect of green density on subsequent densification and grain growth of nanophase SnO2 powder during isothermal sintering [J].