Controlling the thermal contact resistance of a carbon nanotube heat spreader
The ability to tune the thermal resistance of carbon nanotube mechanical supports from insulating to conducting could permit the next generation of thermal management devices. Here, we demonstrate fabrication techniques for carbon nanotube supports that realize either weak or strong thermal coupling...
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| Veröffentlicht in: | arXiv.org 2010-07 |
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| creator | Baloch, Kamal H Voskanian, Norvik Cumings, John |
| description | The ability to tune the thermal resistance of carbon nanotube mechanical supports from insulating to conducting could permit the next generation of thermal management devices. Here, we demonstrate fabrication techniques for carbon nanotube supports that realize either weak or strong thermal coupling, selectively. Direct imaging by in-situ electron thermal microscopy shows that the thermal contact resistance of a nanotube weakly-coupled to its support is greater than 250 K*m/W and that this value can be reduced to 4.2(+5.6/-2.1) K*m/W by imbedding the nanotube in metal contacts. |
| doi_str_mv | 10.48550/arxiv.1007.4364 |
| format | Article |
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| subjects | Carbon Carbon nanotubes Contact resistance Heat transfer Nanotubes Physics - Mesoscale and Nanoscale Physics Thermal contact resistance Thermal coupling Thermal imaging Thermal management Thermal microscopy Thermal resistance |
| title | Controlling the thermal contact resistance of a carbon nanotube heat spreader |
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