Thermoelectric Properties of p-Type PbSe Nanowires

被引：66

作者：

Liang, Wenjie ^{[1
]}

Rabin, Oded ^{[1
]}

Hochbaum, Allon I. ^{[1
]}

Fardy, Melissa ^{[1
]}

Zhang, Minjuan ^{[2
]}

Yang, Peidong ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

[2] Toyota Motor Engn & Mfg N Amer Inc, Mat Res Dept, Toyota Tech Ctr, Ann Arbor, MI 48105 USA

来源：

NANO RESEARCH | 2009年 / 2卷 / 05期

关键词：

Nanowire; thermoelectrics; thermopower; thermal conductivity; lead chalcogenide; FIGURE; PERFORMANCE;

D O I：

10.1007/s12274-009-9039-2

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 individual solution-phase synthesized p-type PbSe nanowires have been examined. The nanowires showed near degenerately doped charge carrier concentrations. Compared to the bulk, the PbSe nanowires exhibited a similar Seebeck coefficient and a significant reduction in thermal conductivity in the temperature range 20 K to 300 K. Thermal annealing of the PbSe nanowires allowed their thermoelectric properties to be controllably tuned by increasing their carrier concentration or hole mobility. After optimal annealing, single PbSe nanowires exhibited a thermoelectric figure of merit (ZT) of 0.12 at room temperature.

引用

页码：394 / 399

页数：6

共 22 条

[1] THERMOELECTRIC POWER OF SINGLE-CRYSTAL P-TYPE PBSE [J].

ABRAMS, H ;

TAUBER, RN .

JOURNAL OF APPLIED PHYSICS, 1969, 40 (09) :3868-&

[2] MOBILITY OF ELECTRONS AND HOLES IN PBS, PBSE, AND PBTE BETWEEN ROOM TEMPERATURE AND 4.2-DEGREES-K [J].

ALLGAIER, RS ;

SCANLON, WW .

PHYSICAL REVIEW, 1958, 111 (04) :1029-1037

[3] Silicon nanowires as efficient thermoelectric materials [J].

Boukai, Akram I. ;

Bunimovich, Yuri ;

Tahir-Kheli, Jamil ;

Yu, Jen-Kan ;

Goddard, William A., III ;

Heath, James R. .

NATURE, 2008, 451 (7175) :168-171

[4] Designing PbSe nanowires and nanorings through oriented attachment of nanoparticles [J].

Cho, KS ;

Talapin, DV ;

Gaschler, W ;

Murray, CB .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (19) :7140-7147

[5] Synthesis and thermoelectrical characterization of lead chalcogenide nanowires [J].

Fardy, Melissa ;

Hochbaum, Allon I. ;

Goldberger, Joshua ;

Zhang, Minjuan M. ;

Yang, Peidong .

ADVANCED MATERIALS, 2007, 19 (19) :3047-+

[6]

Goldsmid H. J., 1964, Thermoelectric Refrigeration

[7]

Gray DE., 1972, AM I PHYS HDB

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

Harman, TC ;

Taylor, PJ ;

Walsh, MP ;

LaForge, BE .

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

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

HICKS, LD ;

DRESSELHAUS, MS .

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

[10] THERMOELECTRIC FIGURE OF MERIT OF A ONE-DIMENSIONAL CONDUCTOR [J].

HICKS, LD ;

DRESSELHAUS, MS .

PHYSICAL REVIEW B, 1993, 47 (24) :16631-16634

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