The effect of surface roughness on lattice thermal conductivity of silicon nanowires

2011 ◽  
Vol 406 (13) ◽  
pp. 2515-2520 ◽  
Author(s):  
Zan Wang ◽  
Zhonghua Ni ◽  
Ruijie Zhao ◽  
Minhua Chen ◽  
Kedong Bi ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Surface Roughness ◽  
Silicon Nanowires ◽  
Lattice Thermal Conductivity ◽  
Effect Of Surface

Effect of surface roughness on thermal conductivity of VLS-grown rough Si1−x Ge x nanowires

2011 ◽  
Vol 104 (1) ◽  
pp. 23-28 ◽  
Author(s):  
Hyoungjoon Kim ◽  
Yong-Hee Park ◽  
Ilsoo Kim ◽  
Jungwon Kim ◽  
Heon-Jin Choi ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Surface Roughness ◽  
Effect Of Surface

scholarly journals Effect of surface termination on the lattice thermal conductivity of monolayer Ti3C2Tz MXenes

2019 ◽  
Vol 126 (6) ◽  
pp. 065101 ◽  
Author(s):  
Hamed Gholivand ◽  
Shadi Fuladi ◽  
Zahra Hemmat ◽  
Amin Salehi-Khojin ◽  
Fatemeh Khalili-Araghi
Keyword(s):  
Thermal Conductivity ◽  
Lattice Thermal Conductivity ◽  
Surface Termination ◽  
Effect Of Surface

Effect of surface roughness on elastic limit of silicon nanowires

2015 ◽  
Vol 101 ◽  
pp. 267-274 ◽  
Author(s):  
Qunfeng Liu ◽  
Liang Wang ◽  
Shengping Shen
Keyword(s):  
Surface Roughness ◽  
Silicon Nanowires ◽  
Elastic Limit ◽  
Effect Of Surface

(Invited) The Effects of Doping Pattern on Lattice Thermal Conductivity of Silicon Nanowires

2014 ◽  
Vol 60 (1) ◽  
pp. 1159-1164 ◽  
Author(s):  
Y. B. Zhang ◽  
K. D. Bi ◽  
W. Y. Chen ◽  
M. H. Chen ◽  
Y. F. Chen
Keyword(s):  
Thermal Conductivity ◽  
Silicon Nanowires ◽  
Lattice Thermal Conductivity

Molecular Dynamics Simulations of Thermal Conductivity of Bi2Te3 Nanowires

2009 ◽  
Author(s):  
Bo Qiu ◽  
Lin Sun ◽  
Xiulin Ruan
Keyword(s):  
Thermal Conductivity ◽  
Molecular Dynamics ◽  
Surface Roughness ◽  
Smooth Surface ◽  
Lattice Thermal Conductivity ◽  
Phonon Scattering ◽  
Md Simulations ◽  
Interatomic Potentials ◽  
Phonon Confinement ◽  
Dynamics Simulations

In this paper, by employing the previously developed two-body interatomic potentials for bismuth telluride, molecular dynamics (MD) simulations are used to describe the thermoelectric properties, namely the lattice thermal conductivity, of Bi2Te3 nanowires. Cylindrical nanowires with both smooth surface and sawtooth surface roughness are studied, aiming at revealing the effects of phonon confinement in 1-D structures, phonon boundary scatterings and surface roughness on the lattice thermal conductivity of Bi2Te3 nanowires. In the end, the influence of various phonon scattering mechanisms on the nanostructures under study are summarized, possible paths to reduce lattice thermal conductivity in nanostructured Bi2Te3, which is favorable for enhancing thermoelectric performance, are pointed out.

Monte Carlo Simulations of Phonon Backscattering in Low-Sized Nanowires

2009 ◽  
Author(s):  
Zan Wang ◽  
Yunfei Chen ◽  
Jiapeng Li ◽  
Ruijie Zhao ◽  
Yanyan Zhao
Keyword(s):  
Surface Roughness ◽  
Monte Carlo ◽  
Silicon Nanowires ◽  
Lattice Thermal Conductivity ◽  
Monte Carlo Model ◽  
Laboratory Data ◽  
Equivalent Diameter ◽  
Influence Coefficient ◽  
Roughness Effects ◽  
Electroless Etching

Monte Carlo model is used to study the roughness effects on lattice thermal conductivity of silicon nanowires. Based on the Matthiessen’s rule, a roughness influence coefficient is adopted to amend the relaxation time. Individual silicon nanowires growing by vapour-liquid-solid method are different from those making by aqueous electroless etching method in the surface roughness, which are both simulated over a temperature range of 15–315K with various equivalent diameters. The results are close to the laboratory data, proving the validity of the MC model and showing the effects of surface roughness on thermal transport decrease with the increasing of equivalent diameter.

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