Journal ArticleDOI
Thermal conductance and thermopower of an individual single-wall carbon nanotube.
TLDR
It is observed that the thermal conductance of a 2.76-microm-long individual suspended single-wall carbon nanotube (SWCNT) was very close to the calculated ballistic thermal conductances of a 1-nm-diameter SWCNT without showing signatures of phonon-phonon Umklapp scattering for temperatures between 110 and 300 K.Abstract:
We have observed experimentally that the thermal conductance of a 2.76-μm-long individual suspended single-wall carbon nanotube (SWCNT) was very close to the calculated ballistic thermal conductance of a 1-nm-diameter SWCNT without showing signatures of phonon−phonon Umklapp scattering for temperatures between 110 and 300 K. Although the observed thermopower of the SWCNT can be attributed to a linear diffusion contribution and a constant phonon drag effect, there could be an additional contact effect.read more
Citations
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Journal ArticleDOI
Computational study on thermal conductivity of defective carbon nanomaterials: carbon nanotubes versus graphene nanoribbons
TL;DR: In this article, the thermal conductivities of carbon nanotubes (CNTs) and graphene nanoribbons (GNRs) with vacancy defects are compared by using non-equilibrium molecular dynamics simulations.
Journal ArticleDOI
Control of electron- and phonon-derived thermal conductances in carbon nanotubes
TL;DR: In this paper, a method for controlling the electron and phonon derived thermal conductances in carbon nanotubes with vacancy defects involving numerical analysis based on the nonequilibrium electron/phonon Green's function method was presented.
Journal ArticleDOI
Temperature Dependence of the Ballistic Energy Transport in Perfluoroalkanes
TL;DR: The modeling of the energy transport involving both ballistic and diffusive mechanisms is performed and confirms a switch of the transport regime from ballistic at lower temperatures to diffusive at higher temperatures.
Journal ArticleDOI
Enhanced anisotropic heat conduction in multi-walled carbon nanotubes
TL;DR: Anisotropy of heat conduction in multi-walled carbon nanotubes (MWNTs) is investigated by measuring heat flows in a pristine MWNT and in a MWNT with defects as mentioned in this paper.
Journal ArticleDOI
Analytical analysis of heat conduction in a suspended one-dimensional object
TL;DR: In this paper, an analytical solution for the self-heating conduction equation of a suspended one-dimensional (1D) object is given by combining Umklapp and second-order three-phonon processes.
References
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Electronic transport in mesoscopic systems
TL;DR: In this article, preliminary concepts of conductance from transmission, S-matrix and Green's function formalism are discussed. And double-barrier tunnelling is considered.
Electronic Transport in Mesoscopic Systems
TL;DR: In this article, preliminary concepts of conductance from transmission, S-matrix and Green's function formalism are discussed. And double-barrier tunnelling is considered.
Journal ArticleDOI
Thermal transport measurements of individual multiwalled nanotubes.
TL;DR: The thermal conductivity and thermoelectric power of a single carbon nanotube were measured using a microfabricated suspended device and shows linear temperature dependence with a value of 80 microV/K at room temperature.
Journal ArticleDOI
Unusually High Thermal Conductivity of Carbon Nanotubes
TL;DR: An unusually high value, lambda approximately 6600 W/m K, is suggested for an isolated (10,10) nanotube at room temperature, comparable to the thermal conductivity of a hypothetical isolated graphene monolayer or diamond.
Journal ArticleDOI
Extreme oxygen sensitivity of electronic properties of carbon nanotubes
TL;DR: The results, although demonstrating that nanotubes could find use as sensitive chemical gas sensors, likewise indicate that many supposedly intrinsic properties measured on as-prepared nanotube may be severely compromised by extrinsic air exposure effects.