Synthesis of SnTe/AgSbSe2 nanocomposite as a promising lead- free thermoelectric material

被引：38

作者：

He, Jun ^{[1
]}

Xu, Jingtao ^{[1
]}

Tan, Xiaojian ^{[1
]}

Liu, Guo-Qiang ^{[1
]}

Shao, Hezhu ^{[1
]}

Liu, Zhu ^{[1
]}

Jiang, Haochuan ^{[1
]}

Jiang, Jun ^{[1
]}

机构：

[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China

来源：

JOURNAL OF MATERIOMICS | 2016年 / 2卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Thermoelectric; Nanocomposite; SnTe; AgSbSe2;

D O I：

10.1016/j.jmat.2016.05.001

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：

A series of SnTe-AgSbSe2 composites were synthesized by a zone-melting method. The nanostructure of the composites was determined by the high resolution transmission electron microscope. The results show that the lattice thermal conductivity is decreased to similar to 0.6 W/m.K at 820 K due to the intense scattering of phonon. Also, the carrier concentration increases with AgSbSe2 amounts, and a large effective mass of similar to 4m(0) at room temperature appears at a high carrier concentration of similar to 2x10(21)/cm(3). A relatively high thermoelectric figure of merit ZT of 0.92 at 820 K is obtained by composition optimization. It is indicated that the SnTe-AgSbSe2 composite should be a promising thermoelectric material. (C) 2016 The Chinese Ceramic Society. Production and hosting by Elsevier B.V.

引用

页码：165 / 171

页数：7

共 35 条

[1] Coexistence of large thermopower and degenerate doping in the nanostructured material Ag0.85SnSb1.15Te3 [J].

Androulakis, John ;

Pcionek, Robert ;

Quarez, Eric ;

Do, Jun-Huang ;

Kong, Huijun ;

Palchik, Oleg ;

Uher, C. ;

D'Angelo, Jonathan James ;

Short, Jarrod ;

Hogan, Tim ;

Kanatzidis, Mercouri G. .

CHEMISTRY OF MATERIALS, 2006, 18 (20) :4719-4721

[2] Mg Alloying in SnTe Facilitates Valence Band Convergence and Optimizes Thermoelectric Properties [J].

Banik, Ananya ;

Shenoy, U. Sandhya ;

Anand, Shashwat ;

Waghmare, Umesh V. ;

Biswas, Kanishka .

CHEMISTRY OF MATERIALS, 2015, 27 (02) :581-587

[3] Cooling, heating, generating power, and recovering waste heat with thermoelectric systems [J].

Bell, Lon E. .

SCIENCE, 2008, 321 (5895) :1457-1461

[4] High-performance bulk thermoelectrics with all-scale hierarchical architectures [J].

Biswas, Kanishka ;

He, Jiaqing ;

Blum, Ivan D. ;

Wu, Chun-I ;

Hogan, Timothy P. ;

Seidman, David N. ;

Dravid, Vinayak P. ;

Kanatzidis, Mercouri G. .

NATURE, 2012, 489 (7416) :414-418

[5] High thermoelectric figure of merit in nanostructured p-type PbTe-MTe (M = Ca, Ba) [J].

Biswas, Kanishka ;

He, Jiaqing ;

Wang, Guoyu ;

Lo, Shih-Han ;

Uher, Ctirad ;

Dravid, Vinayak P. ;

Kanatzidis, Mercouri G. .

ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (11) :4675-4684

[6] ANOMALOUS THERMOELECTRIC POWER AS EVIDENCE FOR 2 VALANCE BANDS IN SNTE [J].

BREBRICK, RF ;

STRAUSS, AJ .

PHYSICAL REVIEW, 1963, 131 (01) :104-&

[7] LOWER LIMIT TO THE THERMAL-CONDUCTIVITY OF DISORDERED CRYSTALS [J].

CAHILL, DG ;

WATSON, SK ;

POHL, RO .

PHYSICAL REVIEW B, 1992, 46 (10) :6131-6140

[8] SnTe-AgSbTe2 Thermoelectric Alloys [J].

Chen, Yi ;

Nielsen, Michele D. ;

Gao, Yi-Bin ;

Zhu, Tie-Jun ;

Zhao, Xinbing ;

Heremans, Joseph P. .

ADVANCED ENERGY MATERIALS, 2012, 2 (01) :58-62

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

DiSalvo, FJ .

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

[10] Tin Telluride-Based Nanocomposites of the Type AgSnmBiTe2+m (BTST-m) as Effective Lead-Free Thermoelectric Materials [J].

Falkenbach, Oliver ;

Schmitz, Andreas ;

Dankwort, Torben ;

Koch, Guenter ;

Kienle, Lorenz ;

Mueller, Eckhard ;

Schlecht, Sabine .

CHEMISTRY OF MATERIALS, 2015, 27 (21) :7296-7305

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