Enhanced thermoelectric properties of PbTe alloyed with Sb2Te3

被引：44

作者：

Zhu, PW ^{[1
]}

Imai, Y

Isoda, Y

Shinohara, Y

Jia, XP

Zou, GT

机构：

[1] Natl Inst Mat Sci, Ecomat Res Ctr, Tsukuba, Ibaraki 3050047, Japan

[2] Jilin Univ, Natl Lab Superhard Mat, Changchun 130012, Peoples R China

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2005年 / 17卷 / 46期

关键词：

D O I：

10.1088/0953-8984/17/46/015

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report the enhanced thermoelectric properties of PbTe alloyed with antimony telluride (Sb2Te3). The resistivities and absolute values of the Seebeck coefficient for PbTe alloyed with Sb2Te3 increase while the thermal conductivities decrease with rising temperature. A maximum figure of merit, ZT, of 1.17 has been achieved for PbTe alloyed with 0.8 mol% Sb2Te3 at 560 K. This value is about 30% higher than the ones reported previously for bulk PbTe. The enhanced thermoelectric properties may be due to the low thermal conductivities which are induced by alloying with Sb2Te3 and much smaller than that reported for bulk PbTe.

引用

页码：7319 / 7326

页数：8

共 14 条

[1] THE EFFECT OF PHONON GRAIN-BOUNDARY SCATTERING, DOPING AND ALLOYING ON THE LATTICE THERMAL-CONDUCTIVITY OF LEAD-TELLURIDE [J].

BHANDARI, CM ;

ROWE, DM .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1983, 16 (04) :L75-L77

[2]

BOKII GB, 1971, CRYSTAL CHEM, P139

[3] Thermoelectric cooling and power generation [J].

DiSalvo, FJ .

SCIENCE, 1999, 285 (5428) :703-706

[4] Cubic AgPbmSbTe2+m:: Bulk thermoelectric materials with high figure of merit [J].

Hsu, KF ;

Loo, S ;

Guo, F ;

Chen, W ;

Dyck, JS ;

Uher, C ;

Hogan, T ;

Polychroniadis, EK ;

Kanatzidis, MG .

SCIENCE, 2004, 303 (5659) :818-821

[5] Preparation of sintered degenerate n-type PbTe with a small grain size and its thermoelectric properties [J].

Kishimoto, K ;

Koyanagi, T .

JOURNAL OF APPLIED PHYSICS, 2002, 92 (05) :2544-2549

[6]

Mahan GD, 1998, SOLID STATE PHYS, V51, P81

[7] Carrier concentration dependence of thermal conductivity of iodine-doped n-type PbTe [J].

Orihashi, M ;

Noda, Y ;

Chen, LD ;

Hirai, T .

MATERIALS TRANSACTIONS JIM, 2000, 41 (10) :1282-1286

[8] FLASH METHOD OF DETERMINING THERMAL DIFFUSIVITY, HEAT CAPACITY, AND THERMAL CONDUCTIVITY [J].

PARKER, WJ ;

JENKINS, RJ ;

ABBOTT, GL ;

BUTLER, CP .

JOURNAL OF APPLIED PHYSICS, 1961, 32 (09) :1679-&

[9]

PASHINKIN AS, 1994, INORG MATER+, V30, P1036

[10]

SHINOHARA Y, 1998, ICT 97 16 INT C THER, V379

← 1 2 →