Thermoelectric properties of rare earth doped SrTiO3

被引：244

作者：

Muta, H ^{[1
]}

Kurosaki, K ^{[1
]}

Yamanaka, S ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Dept Nucl Engn, Suita, Osaka 5650871, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2003年 / 350卷 / 1-2期

关键词：

transition metal compounds; oxide materials; electrical transport; heat conduction; thermoelectric;

D O I：

10.1016/S0925-8388(02)00972-6

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：

The thermoelectric properties of Sr0.9R0.1TiO3 (R=Y, La, Sm, Gd, Dy) have been measured from room temperature to 1073 K. The electrical conductivities and Seebeck coefficients are independent of the kind of rare earth elements in the temperature range, so the figure of merits are influenced by the difference in the thermal conductivities. The thermal conductivities decrease with doping according to the rare earth atomic mass and ionic radius. Sr0.9Dy0.1TiO3 shows the highest figure of merit of the investigated samples, reaching 3.84 X 10(-4) K-1 at 573 K. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：292 / 295

页数：4

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