Role of the phonon confinement effect and boundary scattering in reducing the thermal conductivity of argon nanowire

2021 ◽  
Vol 154 (5) ◽  
pp. 054702
Author(s):  
Konstantin V. Tretiakov ◽  
Krzysztof Hyżorek
Keyword(s):  
Thermal Conductivity ◽  
Confinement Effect ◽  
Boundary Scattering ◽  
Phonon Confinement ◽  
Phonon Confinement Effect

Thermal Conductivity in Thin Silicon Nanowires:  Phonon Confinement Effect

Nano Letters ◽  
2007 ◽  
Vol 7 (5) ◽  
pp. 1155-1159 ◽  
Author(s):  
Inna Ponomareva ◽  
Deepak Srivastava ◽  
Madhu Menon
Keyword(s):  
Thermal Conductivity ◽  
Silicon Nanowires ◽  
Confinement Effect ◽  
Phonon Confinement ◽  
Thin Silicon ◽  
Phonon Confinement Effect

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.

The negative phonon confinement effect in nanoscopic sodium nitrite

2009 ◽  
Vol 20 (39) ◽  
pp. 395706 ◽  
Author(s):  
E Yu Koroleva ◽  
D Nuzhnyy ◽  
J Pokorny ◽  
S Kamba ◽  
Yu A Kumzerov ◽  
...  
Keyword(s):  
Sodium Nitrite ◽  
Confinement Effect ◽  
Phonon Confinement ◽  
Phonon Confinement Effect

Formation, structure, and phonon confinement effect of nanocrystalline Si1−xGex in SiO2‐Si‐Ge cosputtered films

2004 ◽  
Vol 96 (9) ◽  
pp. 5239-5242 ◽  
Author(s):  
Y. M. Yang ◽  
X. L. Wu ◽  
G. G. Siu ◽  
G. S. Huang ◽  
J. C. Shen ◽  
...  
Keyword(s):  
Confinement Effect ◽  
Phonon Confinement ◽  
Phonon Confinement Effect

Phonon confinement effect on nanocrystalline LiCoO2 studied with Raman spectroscopy

2008 ◽  
Vol 69 (11) ◽  
pp. 2911-2915 ◽  
Author(s):  
M. Okubo ◽  
E. Hosono ◽  
T. Kudo ◽  
H.S. Zhou ◽  
I. Honma
Keyword(s):  
Raman Spectroscopy ◽  
Confinement Effect ◽  
Phonon Confinement ◽  
Phonon Confinement Effect

scholarly journals Phononic thermal conductivity in silicene: the role of vacancy defects and boundary scattering

2018 ◽  
Vol 30 (15) ◽  
pp. 155307 ◽  
Author(s):  
M Barati ◽  
T Vazifehshenas ◽  
T Salavati-fard ◽  
M Farmanbar
Keyword(s):  
Thermal Conductivity ◽  
Boundary Scattering ◽  
Vacancy Defects

The phonon confinement effect in two-dimensional nanocrystals of black phosphorus with anisotropic phonon dispersions

Nanoscale ◽  
2018 ◽  
Vol 10 (18) ◽  
pp. 8704-8711 ◽  
Author(s):  
Tong Lin ◽  
Xin Cong ◽  
Miao-Ling Lin ◽  
Xue-Lu Liu ◽  
Ping-Heng Tan
Keyword(s):  
Black Phosphorus ◽  
Confinement Effect ◽  
Two Dimensional ◽  
Phonon Confinement ◽  
Raman Modes ◽  
Phonon Confinement Effect

Raman modes of black phosphorus nanocrystals exhibit significant asymmetrical profiles resulting from anisotropic phonon dispersions of the corresponding phonon branches.

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