Remarkably enhanced thermal transport based on a flexible horizontally-aligned carbon nanotube array film.

ABSTRACT: It has been more than a decade since the thermal conductivity of vertically aligned carbon nanotube (VACNT) arrays was reported possible to exceed that of the best thermal greases or phase change materials by an order of magnitude. Despite tremendous prospects as a thermal interface material (TIM), results were discouraging for practical applications. The primary reason is the large thermal contact resistance between the CNT tips and the heat sink. Here we report a simultaneous sevenfold increase in in-plane thermal conductivity and a fourfold reduction in the thermal contact resistance at the flexible CNT-SiO2 coated heat sink interface by coupling the CNTs with orderly physical overlapping along the horizontal direction through an engineering approach (shear pressing). The removal of emp

SUBMITTER: Qiu L 

PROVIDER: S-EPMC4754700 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature