p-type Bi0.4Sb1.6Te3 nanocomposites with enhanced figure of merit

被引：128

作者：

Fan, Shufen ^{[1
]}

Zhao, Junnan ^{[1
]}

Guo, Jun ^{[1
]}

Yan, Qingyu ^{[1
]}

Ma, Jan ^{[2
]}

Hng, Huey Hoon ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

[2] Nanyang Technol Univ, Temasek Labs, Singapore 637553, Singapore

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 18期

关键词：

antimony compounds; bismuth compounds; inclusions; melt spinning; mixing; nanocomposites; nanofabrication; nanoparticles; phonons; semiconductor materials; thermal conductivity; BISMUTH-ANTIMONY TELLURIDE; THERMOELECTRIC PROPERTIES; DEVICES;

D O I：

10.1063/1.3427427

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report enhanced figure of merit, ZT, in p-type Bi0.4Sb1.6Te3 nanocomposites fabricated by a rapid and high throughput method of mixing nanostructured Bi0.4Sb1.6Te3 particles obtained through melt spinning with micronsized particles obtained via solid state reaction. Due to effective scattering of phonons over a wide wavelength spectrum, low thermal conductivity, and moderately good power factor were obtained in the nanocomposites to achieve ZT above 1.5 at room temperature. A maximum ZT of 1.80 was attained at 43 degrees C for the nanocomposite consisting 40 wt % nanoinclusions. This was a 56% increment over the bulk sample, and the highest ZT reported for Bi2Te3-based materials. (C) 2010 American Institute of Physics. [doi:10.1063/1.3427427]

引用

页数：3

共 20 条

[1] Syntheses and thermoelectric properties of Bi2Te3/Sb2Te3 bulk nanocomposites with laminated nanostructure [J].

Cao, Y. Q. ;

Zhao, X. B. ;

Zhu, T. J. ;

Zhang, X. B. ;

Tu, J. P. .

APPLIED PHYSICS LETTERS, 2008, 92 (14)

[2] Quantum dot superlattice thermoelectric materials and devices [J].

Harman, TC ;

Taylor, PJ ;

Walsh, MP ;

LaForge, BE .

SCIENCE, 2002, 297 (5590) :2229-2232

[3] EFFECT OF QUANTUM-WELL STRUCTURES ON THE THERMOELECTRIC FIGURE OF MERIT [J].

HICKS, LD ;

DRESSELHAUS, MS .

PHYSICAL REVIEW B, 1993, 47 (19) :12727-12731

[4] Modeling the thermal conductivity and phonon transport in nanoparticle composites using Monte Carlo simulation [J].

Jeng, Ming-Shan ;

Yang, Ronggui ;

Song, David ;

Chen, Gang .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2008, 130 (04)

[5]

Kerr T., 2008, Combined Heat and PowerEvaluating the Benefits of Greater Global Investment, P1

[6] Structure Study of Bulk Nanograined Thermoelectric Bismuth Antimony Telluride [J].

Lan, Yucheng ;

Poudel, Bed ;

Ma, Yi ;

Wang, Dezhi ;

Dresselhaus, Mildred S. ;

Chen, Gang ;

Ren, Zhifeng .

NANO LETTERS, 2009, 9 (04) :1419-1422

[7] Preparation and thermoelectric properties of high-performance Sb additional Yb0.2Co4Sb12+y bulk materials with nanostructure [J].

Li, Han ;

Tang, Xinfeng ;

Su, Xianli ;

Zhang, Qingjie .

APPLIED PHYSICS LETTERS, 2008, 92 (20)

[8] Thermoelectric properties of Yb0.15Co4Sb12 based nanocomposites with CoSb3 nano-inclusion [J].

Mi, J. L. ;

Zhao, X. B. ;

Zhu, T. J. ;

Tu, J. P. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (20)

[9] Bulk nanostructured thermoelectric materials: current research and future prospects [J].

Minnich, A. J. ;

Dresselhaus, M. S. ;

Ren, Z. F. ;

Chen, G. .

ENERGY & ENVIRONMENTAL SCIENCE, 2009, 2 (05) :466-479

[10] Synthesis and thermoelectric properties of Bi2Te3 based nanocomposites [J].

Ni, HL ;

Zhao, XB ;

Zhu, TJ ;

Ji, XH ;

Tu, JP .

JOURNAL OF ALLOYS AND COMPOUNDS, 2005, 397 (1-2) :317-321

← 1 2 →