Phonon Boundary Effects and Thermal Conductivity of Rough Concentric Nanowires

被引：29

作者：

Alvarez, F. X. ^{[1
]}

Jou, D. ^{[1
,2
]}

Sellitto, A. ^{[3
]}

机构：

[1] Univ Autonoma Barcelona, Dept Fis, Bellaterra 08193, Catalonia, Spain

[2] Inst Estudis Catalans, Barcelona 08001, Catalonia, Spain

[3] Univ Basilicata, Dept Math & Comp Sci, I-85100 Potenza, Italy

来源：

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 2011年 / 133卷 / 02期

关键词：

phonon hydrodynamic; nanowires; nanosystems; thermal conductivity; ballistic transport; heat transport; SILICON NANOWIRES; HEAT-CONDUCTION; SCATTERING; TRANSPORT; FILMS; LAYERS;

D O I：

10.1115/1.4002439

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

By using a phonon hydrodynamics model for heat flow complemented with boundary conditions for smooth or rough boundaries, we study the influence of boundary conditions on the longitudinal thermal conductivity for several kinds of nanowires (single, tubular, and core-shell). The effects of the boundaries are seen to be extremely important. [DOI:10.1115/1.4002439]

引用

页数：7

共 35 条

[1] Memory and nonlocal effects in heat transport: From diffusive to ballistic regimes [J].

Alvarez, F. X. ;

Jou, D. .

APPLIED PHYSICS LETTERS, 2007, 90 (08)

[2] Phonon hydrodynamics and phonon-boundary scattering in nanosystems [J].

Alvarez, F. X. ;

Jou, D. ;

Sellitto, A. .

JOURNAL OF APPLIED PHYSICS, 2009, 105 (01)

[3]

[Anonymous], 2008, UNDERSTANDING NONEQU

[4] Thermal conduction in doped single-crystal silicon films [J].

Asheghi, M ;

Kurabayashi, K ;

Kasnavi, R ;

Goodson, KE .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (08) :5079-5088

[5] Phonon-boundary scattering in thin silicon layers [J].

Asheghi, M ;

Leung, YK ;

Wong, SS ;

Goodson, KE .

APPLIED PHYSICS LETTERS, 1997, 71 (13) :1798-1800

[6] 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

[7] Nanoscale thermal transport [J].

Cahill, DG ;

Ford, WK ;

Goodson, KE ;

Mahan, GD ;

Majumdar, A ;

Maris, HJ ;

Merlin, R ;

Phillpot, SR .

JOURNAL OF APPLIED PHYSICS, 2003, 93 (02) :793-818

[8]

Chen G, 2001, PHYS REV LETT, V86, P2297, DOI 10.1103/PhysRevLett86.2297

[9] Thermal conductance of thin silicon nanowires [J].

Chen, Renkun ;

Hochbaum, Allon I. ;

Murphy, Padraig ;

Moore, Joel ;

Yang, Peidong ;

Majumdar, Arun .

PHYSICAL REVIEW LETTERS, 2008, 101 (10)

[10] Gradient generalization to the extended thermodynamic approach and diffusive-hyperbolic heat conduction [J].

Cimmelli, V. A. ;

Frischmuth, K. .

PHYSICA B-CONDENSED MATTER, 2007, 400 (1-2) :257-265

← 1 2 3 4 →