The effect of acoustic phonon scattering on the carrier mobility in the semiconducting zigzag single wall carbon nanotubes

2010 ◽  
Vol 96 (18) ◽  
pp. 183108 ◽  
Author(s):  
B. Xu ◽  
Y. D. Xia ◽  
J. Yin ◽  
X. G. Wan ◽  
K. Jiang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Acoustic Phonon ◽  
Carrier Mobility ◽  
Phonon Scattering ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon

scholarly journals PREDICTION OF ELECTRON DRIFT VELOCITY IN HELICALLY COILED CARBON NANOTUBES

2016 ◽  
Vol 7 (2) ◽  
Author(s):  
Zoran P. Popović ◽  
Tatjana Vuković ◽  
Božidar Nikolić ◽  
Milan Damnjanović ◽  
Ivanka Milošević
Keyword(s):  
Carbon Nanotubes ◽  
Electric Fields ◽  
Drift Velocity ◽  
Phonon Scattering ◽  
Single Wall Carbon Nanotubes ◽  
Strong Impact ◽  
Electron Drift ◽  
Boltzmann Transport ◽  
Single Wall Carbon ◽  
Scattering Rate

We studied electron transport in single wall carbon nanotubes placed in stationary homogeneous electric fields, oriented along tubes. Electron distributions for various electric fields are determined by solving stationary multi bands Boltzmann transport equation in presence of electron phonon scattering mechanisms. Contributions of all possible scattering channels, allowed by selection rules and energy conservation, are taken into account for finding scattering rate and collision integrals. As it is previously predicted, large electron drift velocities in straight single wall carbon nanotubes are obtained. Frequent electron scattering as well as low group velocity have strong impact on reduction of drift velocity in helically coiled carbon nanotubes.

Thermal Conductance of Individual Single-Wall Carbon Nanotubes

2008 ◽  
Author(s):  
Michael T. Pettes ◽  
Li Shi
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Resistance ◽  
Phonon Scattering ◽  
Thermal Conductance ◽  
Phonon Transport ◽  
Single Wall Carbon Nanotubes ◽  
Platinum Resistance ◽  
Contact Thermal Resistance ◽  
Single Wall Carbon ◽  
Temperature Range

This work presents an experimental study of phonon transport in individual suspended single-wall carbon nanotubes (SWCNTs). Through the use of a micro fabricated device consisting of two adjacent suspended membranes, each with a platinum resistance heater and thermometer, the thermal conductance of several individual SWCNTs has been directly measured over the temperature range of 100 to 490 K. The effects of Umklapp phonon-phonon scattering remain weak and the thermal conductance remains roughly proportional to the calculated ballistic conductance throughout the temperature range. The macroscopic thermal conductance increases with temperature throughout the temperature range indicating static scattering processes or contact thermal resistance dominate transport in this regime. These results are an order of magnitude lower than the predicted ballistic thermal conductance calculated for a defect-free (18,0) nanotube. The results contrast with thermal conductance measurements reported using a high-bias DC self heating method. The discrepancy is discussed in terms of the differences in the contact thermal resistance, defects, and measurement methods.

Estimation of the mechanical properties of nanocomposites based on the properties prediction of single wall carbon nanotubes (SWCNT)

2015 ◽  
Vol 57 (5) ◽  
pp. 447-457 ◽  
Author(s):  
Hassan S. Hedia ◽  
Saad M. Aldousari ◽  
Ahmed K. Abdellatif ◽  
Gamal S. Abdelhaffez
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon

Confining H2 and D2 by adsorption in microporous carbons (single-wall carbon nanotubes and activated carbons) doped by K or Li

2005 ◽  
Vol 30 (4) ◽  
pp. 393-400 ◽  
Author(s):  
Szymon Los ◽  
Philippe Azais ◽  
Roland JM Pellenq ◽  
Yannick Breton ◽  
Olivier Isnard ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbons ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Microporous Carbons
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