Phonon transport assisted by inter-tube carbon displacements in carbon nanotube mats

Aitkaliyeva, Assel; Chen, Di; Shao, Lin

doi:10.1038/srep02774

Title: Phonon transport assisted by inter-tube carbon displacements in carbon nanotube mats

Abstract

Thermal transport in carbon nanotube (CNT) mats, consisting of randomly networked multi-walled carbon nanotubes (MWNTs), is not as efficient as in an individual CNT because of the constrained tube-to-tube phonon transport. Through experiments and modeling, we discover that phonon transport in CNT mats is significantly improved by ion irradiation, which introduces inter-tube displacements, acting as stable point contacts between neighboring tubes. Inter-tube displacement-mediated phonon transport enhances conductivity, while inter-tube phonon-defect scattering reduces conductivity. At low ion irradiation fluence, inter-tube thermal transport enhancement leads to thermal conductivity increase by factor . 5, while at high ion irradiation fluence point defects within tubes cause a decrease in thermal conductivity. Molecular dynamics simulations support the experimentally obtained results and the proposed mechanisms. Further conductivity enhancement in irradiated mats was obtained by post-irradiation heat treatment that removes majority of the defects within the tubes without affecting thermally stable inter-tube displacements.

Authors:

Aitkaliyeva, Assel ^[1]; Chen, Di ^[2]; Shao, Lin ^[3]

Texas A & M Univ., College Station, TX (United States). Materials Science and Engineering Program
Texas A & M Univ., College Station, TX (United States). Dept. of Nuclear Engineering
Texas A & M Univ., College Station, TX (United States). Materials Science and Engineering Program; Texas A & M Univ., College Station, TX (United States). Dept. of Nuclear Engineering

Publication Date:: Fri Sep 27 00:00:00 EDT 2013

Research Org.:: Texas A & M Univ., College Station, TX (United States). Texas A & M Engineering Experiment Station

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1624654

Grant/Contract Number:: SC0006725

Resource Type:: Accepted Manuscript

Journal Name:: Scientific Reports

Additional Journal Information:: Journal Volume: 3; Journal Issue: 1; Journal ID: ISSN 2045-2322

Publisher:: Nature Publishing Group

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 42 ENGINEERING; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Science & Technology - Other Topics

Citation Formats


                    Aitkaliyeva, Assel, Chen, Di, and Shao, Lin. Phonon transport assisted by inter-tube carbon displacements in carbon nanotube mats.  United States: N. p., 2013. 
Web.  doi:10.1038/srep02774.

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                    Aitkaliyeva, Assel, Chen, Di, & Shao, Lin. Phonon transport assisted by inter-tube carbon displacements in carbon nanotube mats.  United States.  https://doi.org/10.1038/srep02774

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                    Aitkaliyeva, Assel, Chen, Di, and Shao, Lin. Fri .  
"Phonon transport assisted by inter-tube carbon displacements in carbon nanotube mats".  United States.  https://doi.org/10.1038/srep02774.  https://www.osti.gov/servlets/purl/1624654.

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@article{osti_1624654,

  title        = {Phonon transport assisted by inter-tube carbon displacements in carbon nanotube mats},

  author       = {Aitkaliyeva, Assel and Chen, Di and Shao, Lin},

  abstractNote = {Thermal transport in carbon nanotube (CNT) mats, consisting of randomly networked multi-walled carbon nanotubes (MWNTs), is not as efficient as in an individual CNT because of the constrained tube-to-tube phonon transport. Through experiments and modeling, we discover that phonon transport in CNT mats is significantly improved by ion irradiation, which introduces inter-tube displacements, acting as stable point contacts between neighboring tubes. Inter-tube displacement-mediated phonon transport enhances conductivity, while inter-tube phonon-defect scattering reduces conductivity. At low ion irradiation fluence, inter-tube thermal transport enhancement leads to thermal conductivity increase by factor . 5, while at high ion irradiation fluence point defects within tubes cause a decrease in thermal conductivity. Molecular dynamics simulations support the experimentally obtained results and the proposed mechanisms. Further conductivity enhancement in irradiated mats was obtained by post-irradiation heat treatment that removes majority of the defects within the tubes without affecting thermally stable inter-tube displacements.},

  doi          = {10.1038/srep02774},

  journal      = {Scientific Reports},

  number       = 1,

  volume       = 3,

  place        = {United States},

  year         = {Fri Sep 27 00:00:00 EDT 2013},

  month        = {Fri Sep 27 00:00:00 EDT 2013}

}

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Works referencing / citing this record:

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Title: Phonon transport assisted by inter-tube carbon displacements in carbon nanotube mats

Abstract

Citation Formats

Structural Defects in Graphene journal, November 2010

Phonon Engineering in Carbon Nanotubes by Controlling Defect Concentration journal, November 2011

Engineering of nanostructured carbon materials with electron or ion beams journal, October 2007

Flash Method of Determining Thermal Diffusivity, Heat Capacity, and Thermal Conductivity journal, September 1961

Carbon Nanotubes as High-Pressure Cylinders and Nanoextruders journal, May 2006

Thermal diffusivity of aligned multi-walled carbon nanotubes measured by the flash method journal, October 2011

Thermal properties of graphene and nanostructured carbon materials journal, August 2011

The Engineering of Hot Carbon Nanotubes with a Focused Electron Beam journal, June 2004

Off-axis Thermal Properties of Carbon Nanotube Films journal, December 2005

Electrical and thermal transport properties of magnetically aligned single wall carbon nanotube films journal, July 2000

Fast Parallel Algorithms for Short-Range Molecular Dynamics journal, March 1995

A simple nonequilibrium molecular dynamics method for calculating the thermal conductivity journal, April 1997

Thermal conductivity of single-walled carbon nanotubes journal, January 1999

Unusually High Thermal Conductivity of Carbon Nanotubes journal, May 2000

Upper bound to the thermal conductivity of carbon nanotube pellets journal, April 2009

Bound and free self-interstitial defects in graphite and bilayer graphene: A computational study journal, July 2011

Defect formation and annealing kinetics in ion irradiated carbon nanotube buckypapers journal, October 2009

Cutting Single-Walled Carbon Nanotubes with an Electron Beam: Evidence for Atom Migration Inside Nanotubes journal, October 2005

Quantized Phonon Spectrum of Single-Wall Carbon Nanotubes journal, September 2000

Irradiation effects in carbon nanostructures journal, July 1999

Tailoring structure and electrical properties of carbon nanotubes using kilo-electron-volt ions journal, October 2003

The production of amorphous regions in carbon nanotubes by 140keV He ion irradiation journal, October 2012

Adsorption and migration of carbon adatoms on carbon nanotubes: Density-functional ab initio and tight-binding studies journal, February 2004

Reinforcement of single-walled carbon nanotube bundles by intertube bridging journal, February 2004

Turning Carbon Nanotubes from Exceptional Heat Conductors into Insulators journal, March 2009

Cutting Single-Walled Carbon Nanotubes with an Electron Beam: Evidence for Atom Migration Inside Nanotubes journal, October 2005

Structural Defects in Graphene journal, November 2010

Engineering of nanostructured carbon materials with electron or ion beams journal, October 2007

Upper bound to the thermal conductivity of carbon nanotube pellets journal, April 2009

A simple nonequilibrium molecular dynamics method for calculating the thermal conductivity journal, April 1997

Irradiation effects in carbon nanostructures journal, July 1999

Modeling solid-state chemistry: Interatomic potentials for multicomponent systems journal, March 1989

Temperature dependence of lattice vibrations and analysis of the specific heat of graphite journal, October 2003

Plastic Deformation of Single Nanometer-Sized Crystals journal, October 2008

Molecular Junctions by Joining Single-Walled Carbon Nanotubes journal, July 2002

Carbon Nanotube Mats and Fibers with Irradiation-Improved Mechanical Characteristics: A Theoretical Model journal, November 2004

Carbon Nanotube Ballistic Thermal Conductance and Its Limits journal, August 2005

Quantized Phonon Spectrum of Single-Wall Carbon Nanotubes journal, September 2000

Unusually High Thermal Conductivity of Carbon Nanotubes text, January 2000

Thermal transport measurements of individual multiwalled nanotubes text, January 2001

Understanding the Mechanical and Conductive Properties of Carbon Nanotube Fibers for Smart Electronics journal, June 2019

Ion Beam Modification of Carbon Nanotube Yarn in Air and Vacuum journal, July 2017

Structural Defects in Graphene
journal, November 2010

Phonon Engineering in Carbon Nanotubes by Controlling Defect Concentration
journal, November 2011

Engineering of nanostructured carbon materials with electron or ion beams
journal, October 2007

Flash Method of Determining Thermal Diffusivity, Heat Capacity, and Thermal Conductivity
journal, September 1961

Carbon Nanotubes as High-Pressure Cylinders and Nanoextruders
journal, May 2006

Thermal diffusivity of aligned multi-walled carbon nanotubes measured by the flash method
journal, October 2011

Thermal properties of graphene and nanostructured carbon materials
journal, August 2011

The Engineering of Hot Carbon Nanotubes with a Focused Electron Beam
journal, June 2004

Off-axis Thermal Properties of Carbon Nanotube Films
journal, December 2005

Electrical and thermal transport properties of magnetically aligned single wall carbon nanotube films
journal, July 2000

Fast Parallel Algorithms for Short-Range Molecular Dynamics
journal, March 1995

A simple nonequilibrium molecular dynamics method for calculating the thermal conductivity
journal, April 1997

Thermal conductivity of single-walled carbon nanotubes
journal, January 1999

Unusually High Thermal Conductivity of Carbon Nanotubes
journal, May 2000

Upper bound to the thermal conductivity of carbon nanotube pellets
journal, April 2009

Bound and free self-interstitial defects in graphite and bilayer graphene: A computational study
journal, July 2011

Defect formation and annealing kinetics in ion irradiated carbon nanotube buckypapers
journal, October 2009

Cutting Single-Walled Carbon Nanotubes with an Electron Beam: Evidence for Atom Migration Inside Nanotubes
journal, October 2005

Quantized Phonon Spectrum of Single-Wall Carbon Nanotubes
journal, September 2000

Irradiation effects in carbon nanostructures
journal, July 1999

Tailoring structure and electrical properties of carbon nanotubes using kilo-electron-volt ions
journal, October 2003

The production of amorphous regions in carbon nanotubes by 140keV He ion irradiation
journal, October 2012

Adsorption and migration of carbon adatoms on carbon nanotubes: Density-functional ab initio and tight-binding studies
journal, February 2004

Reinforcement of single-walled carbon nanotube bundles by intertube bridging
journal, February 2004

Turning Carbon Nanotubes from Exceptional Heat Conductors into Insulators
journal, March 2009

Cutting Single-Walled Carbon Nanotubes with an Electron Beam: Evidence for Atom Migration Inside Nanotubes
journal, October 2005

Structural Defects in Graphene
journal, November 2010

Engineering of nanostructured carbon materials with electron or ion beams
journal, October 2007

Upper bound to the thermal conductivity of carbon nanotube pellets
journal, April 2009

A simple nonequilibrium molecular dynamics method for calculating the thermal conductivity
journal, April 1997

Irradiation effects in carbon nanostructures
journal, July 1999

Modeling solid-state chemistry: Interatomic potentials for multicomponent systems
journal, March 1989

Temperature dependence of lattice vibrations and analysis of the specific heat of graphite
journal, October 2003

Plastic Deformation of Single Nanometer-Sized Crystals
journal, October 2008

Molecular Junctions by Joining Single-Walled Carbon Nanotubes
journal, July 2002

Carbon Nanotube Mats and Fibers with Irradiation-Improved Mechanical Characteristics: A Theoretical Model
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Carbon Nanotube Ballistic Thermal Conductance and Its Limits
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Quantized Phonon Spectrum of Single-Wall Carbon Nanotubes
journal, September 2000

Unusually High Thermal Conductivity of Carbon Nanotubes
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Thermal transport measurements of individual multiwalled nanotubes
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