Lattice thermal conductivity of single-walled carbon nanotubes: Beyond the relaxation time approximation and phonon-phonon scattering selection rules

2009 ◽  
Vol 80 (12) ◽  
Author(s):  
L. Lindsay ◽  
D. A. Broido ◽  
Natalio Mingo
Keyword(s):  
Thermal Conductivity ◽  
Carbon Nanotubes ◽  
Relaxation Time ◽  
Lattice Thermal Conductivity ◽  
Phonon Scattering ◽  
Single Walled Carbon Nanotubes ◽  
Time Approximation ◽  
Single Walled Carbon ◽  
Relaxation Time Approximation ◽  
Walled Carbon Nanotubes

LATTICE THERMAL CONDUCTIVITY IN A HOLLOW SILICON NANOWIRE

2005 ◽  
Vol 19 (06) ◽  
pp. 1017-1027 ◽  
Author(s):  
WEI-QING HUANG ◽  
KE-QIU CHEN ◽  
Z. SHUAI ◽  
LINGLING WANG ◽  
WANGYU HU
Keyword(s):  
Thermal Conductivity ◽  
Relaxation Time ◽  
Lattice Thermal Conductivity ◽  
Silicon Nanowire ◽  
Boundary Scattering ◽  
Phonon Confinement ◽  
Time Approximation ◽  
Si Nanowire ◽  
Scattering Mechanisms ◽  
Relaxation Time Approximation

We theoretically investigate the lattice thermal conductivity of a hollow Si nanowire under the relaxation time approximation. The results show that the thermal conductivity in such structure is decreased markedly below the bulk value due to phonon confinement and boundary scattering. The thermal conductivities under different scattering mechanisms are given, and it is found that the boundary scattering is dominant resistive process for the decrease of the thermal conductivity.

Quantitative study of bundle size effect on thermal conductivity of single-walled carbon nanotubes

2018 ◽  
Vol 112 (19) ◽  
pp. 191904 ◽  
Author(s):  
Ya Feng ◽  
Taiki Inoue ◽  
Hua An ◽  
Rong Xiang ◽  
Shohei Chiashi ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Carbon Nanotubes ◽  
Size Effect ◽  
Quantitative Study ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Bundle Size ◽  
Walled Carbon Nanotubes
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