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
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Thermal Diffusivity of Single-Walled Carbon Nanotube Forest Measured by Laser Flash Method
TL;DR: In this article, a technique for synthesizing supergrowth carbon nanotubes (SWNTs), which form a highly pure single-walled carbon-nanotube forest, has been developed.
Journal ArticleDOI
Thermal resistance and phonon scattering at the interface between carbon nanotube and amorphous polyethylene
TL;DR: In this paper, a molecular dynamics study of heat conduction in carbon nanotube (CNT)/polyethylene (PE) composites was conducted, where the authors focused on two key interfacial effects: the thermal boundary resistance across the CNT/PE interface, and the reduction of CNT thermal conductivity due to boundary phonon scattering at the interface with amorphous PE matrix.
Journal ArticleDOI
Vibrational energy transport in molecules studied by relaxation-assisted two-dimensional infrared spectroscopy.
TL;DR: The relaxation-assisted two-dimensional infrared spectroscopy method for measuring structures and energy transport dynamics in molecules relies on vibrational energy transport in molecules and offers new structural reporters, such as the energy transport time, cross-peak amplification factors, and connectivity patterns.
Journal ArticleDOI
Thermophysical and optical properties of SWCNTs nanofluids
Zafar Said,Zafar Said +1 more
TL;DR: In this article, the authors measured and analyzed the thermophysical properties (density, thermal conductivity, viscosity, and specific heat) and optical properties (transmittance, extinction coefficient) of SWCNTs nanofluids.
Journal ArticleDOI
Heat Transport in low-dimensional systems
TL;DR: In this paper, the authors present results on theoretical studies of heat conduction in low-dimensional systems and compare their results with the latest results from simulation, which indicate that for momentum-conserving systems, transport is anomalous in one and two dimensions, and the thermal conductivity kappa, diverges with system size L, as kappa ~ L^alpha.
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.