Enhanced thermoelectric properties of neodymium intercalated compounds NdxTiS2

被引：24

作者：

Li, D ^{[1
]}

Qin, XY ^{[1
]}

Zhang, J ^{[1
]}

Li, HJ ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China

来源：

PHYSICS LETTERS A | 2006年 / 348卷 / 3-6期

基金：

中国国家自然科学基金;

关键词：

intercalation compounds; thermoelectric properties;

D O I：

10.1016/j.physleta.2005.08.039

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The thermoelectric properties of Nd-intercalated compounds NdxTiS2 have been investigated at the temperatures from 5 to 310 K. The results indicate that Nd-intercalation into TiS2 leads to substantial decrease of both DC electrical resistivity (141%, 314% and 728% lower at 300 K for x = 0.025, 0.05 and 0.15, respectively) and lattice thermal conductivity (35%, 72% and 93% lower at 300 K for x = 0.025, 0.05 and 0.15, respectively) as compared to those of pristine TiS2- Specially, the figure of merit, ZT, of lightly intercalated compound Nd0.025TiS2 has been improved at all temperature investigated, and specifically it reaches 0.027 at 300 K, which is about 59% greater than that of TiS2. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：379 / 385

页数：7

共 7 条

[1] Large thermoelectric power factor in TiS2 crystal with nearly stoichiometric composition -: art. no. 241104 [J].

Imai, H ;

Shimakawa, Y ;

Kubo, Y .

PHYSICAL REVIEW B, 2001, 64 (24)

[2] OPTICAL AND ELECTRICAL-TRANSPORT STUDIES ON LITHIUM-INTERCALATED TIS2 [J].

JULIEN, C ;

SAMARAS, I ;

GOROCHOV, O ;

GHORAYEB, AM .

PHYSICAL REVIEW B, 1992, 45 (23) :13390-13395

[3] Electrical resistivity and thermopower of intercalation compounds BixTiS2 [J].

Li, D ;

Qin, XY ;

Liu, J ;

Yang, HS .

PHYSICS LETTERS A, 2004, 328 (06) :493-499

[4] HALL-COEFFICIENT AND REFLECTIVITY EVIDENCE THAT TIS2 IS A SEMICONDUCTOR [J].

LOGOTHETIS, EM ;

KAISER, WJ ;

KUKKONEN, CA ;

FAILE, SP ;

COLELLA, R ;

GAMBOLD, J .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1979, 12 (13) :L521-L526

[5] Filled skutterudite antimonides: A new class of thermoelectric materials [J].

Sales, BC ;

Mandrus, D ;

Williams, RK .

SCIENCE, 1996, 272 (5266) :1325-1328

[6]

SLACK GA, 1997, THERMOELECTRIC MAT N, V478, P47

[7] CHEMISTRY OF INTERCALATION COMPOUNDS - METAL GUESTS IN CHALCOGENIDE HOSTS [J].

WHITTINGHAM, MS .

PROGRESS IN SOLID STATE CHEMISTRY, 1978, 12 (01) :41-99

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