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
More filters
Journal ArticleDOI
Thermophysical properties of Single Wall Carbon Nanotubes and its effect on exergy efficiency of a flat plate solar collector
TL;DR: In this paper, the effects of thermo-physical properties of short Single Wall Carbon Nanotubes (SWCNTs) suspended in water was investigated in order to enhance thermal efficiency of a flat plate solar collector.
Journal ArticleDOI
3D Interdigital Au/MnO2 /Au Stacked Hybrid Electrodes for On-Chip Microsupercapacitors.
TL;DR: 3D interdigital Au/MnO2 /Au stacked MSCs have been fabricated based on laser printed flexible templates and can effectively increase the contact area between MnO2 active layer and Au conductive layer, and thus improve the electron transport and electrolyte ion diffusion, resulting in enhanced pseudocapacitive performance of MnO 2.
Journal ArticleDOI
Thermal conductivity of polymer composites based on the length of multi-walled carbon nanotubes
TL;DR: In this article, anisotropic development of thermal conductivity in polymer composites was evaluated by measuring the isotropic, in-plane and through-plane thermal conductivities of composites containing length-adjusted short and long multi-walled CNTs (MWCNTs).
Journal ArticleDOI
Thermal probing of energy dissipation in current-carrying carbon nanotubes
TL;DR: In this article, the temperature distributions in current-carrying carbon nanotubes have been measured with a scanning thermal microscope, and the obtained temperature profiles reveal diffusive and dissipative electron transport in multi-walled and singlewalled nanotube when the voltage bias was higher than the 0.1-0.2 eV optical phonon energy.
Journal ArticleDOI
Thermal and Thermoelectric Transport in Nanostructures and Low-Dimensional Systems
TL;DR: In this paper, a review of quantum and classical size effects on thermal and thermoelectric properties that have been predicted by theoretical calculations or observed in experiments is presented. But the authors focus on the Casimir limit in phonon boundary scattering and the effect of phonon confinement on the lattice thermal conductivity of semiconductor nanowires.
References
More filters
Book
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.