Varying the concentration of single walled carbon nanotubes in thin film polymer composites, and its effect on thermoelectric power

被引：66

作者：

Hewitt, C. A. ^{[1
]}

Kaiser, A. B. ^{[2
]}

Roth, S. ^{[3
]}

Craps, M. ^{[4
]}

Czerw, R. ^{[4
]}

Carroll, D. L. ^{[1
]}

机构：

[1] Wake Forest Univ, Ctr Nanotechnol, Winston Salem, NC 27105 USA

[2] Victoria Univ Wellington, MacDiarmid Inst Adv Mat & Nanotechnol, Wellington 6140, New Zealand

[3] Korea Univ, Sch Elect Engn, WCU Flexible Nanosyst, Seoul 136701, South Korea

[4] NanoTechLabs Inc, Yadkinville, NC 27055 USA

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 18期

关键词：

BEHAVIOR; RESISTIVITY; CONDUCTION; DEVICES;

D O I：

10.1063/1.3580761

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Resistivity and thermoelectric power (TEP) measurements were conducted on single walled carbon nanotube (SWNT), polyvinylidene fluoride composite thin films of varying SWNT concentrations. This heterogeneous material was used in order to utilize the good electrical conductance of the nanotubes and the poor thermal conductance of the polymer to increase the figure of merit (ZT). As the nanotube weight percent decreased from 100% to 5%, the beneficial effects of the TEP increase and thermal conductivity decrease outweighed the negative effect of decreased electrical conductivity, resulting in an increase in ZT by a factor of 100. (C) 2011 American Institute of Physics. [doi:10.1063/1.3580761]

引用

页数：3

共 25 条

[1] Thermoelectric power of aligned and randomly oriented carbon nanotubes [J].

Baxendale, M ;

Lim, KG ;

Amaratunga, GAJ .

PHYSICAL REVIEW B, 2000, 61 (19) :12705-12708

[2] 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

[3] Is the intrinsic thermoelectric power of carbon nanotubes positive? [J].

Bradley, K ;

Jhi, SH ;

Collins, PG ;

Hone, J ;

Cohen, ML ;

Louie, SG ;

Zettl, A .

PHYSICAL REVIEW LETTERS, 2000, 85 (20) :4361-4364

[4] Polymer-nanotube composites for transparent, conducting thin films [J].

Carroll, DL ;

Czerw, R ;

Webster, S .

SYNTHETIC METALS, 2005, 155 (03) :694-697

[5] Nonlinear behavior in the thermopower of doped carbon nanotubes due to strong, localized states [J].

Choi, YM ;

Lee, DS ;

Czerw, R ;

Chiu, PW ;

Grobert, N ;

Terrones, M ;

Reyes-Reyes, M ;

Terrones, H ;

Charlier, JC ;

Ajayan, PM ;

Roth, S ;

Carroll, DL ;

Park, YW .

NANO LETTERS, 2003, 3 (06) :839-842

[6] Extreme oxygen sensitivity of electronic properties of carbon nanotubes [J].

Collins, PG ;

Bradley, K ;

Ishigami, M ;

Zettl, A .

SCIENCE, 2000, 287 (5459) :1801-1804

[7] The present status and key problems of carbon nanotube based polymer composites [J].

Du, J-H. ;

Bai, J. ;

Cheng, H-M. .

EXPRESS POLYMER LETTERS, 2007, 1 (05) :253-273

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

Harman, TC ;

Taylor, PJ ;

Walsh, MP ;

LaForge, BE .

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

[9] Thermal properties of carbon nanotubes and nanotube-based materials [J].

Hone, J ;

Llaguno, MC ;

Biercuk, MJ ;

Johnson, AT ;

Batlogg, B ;

Benes, Z ;

Fischer, JE .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2002, 74 (03) :339-343

[10]

Kaiser AB, 1999, SYNTHETIC MET, V103, P2547, DOI 10.1016/S0379-6779(98)00222-7

← 1 2 3 →