METHOD OF MAKING CARBON NANOTUBE ARRAYS, AND THERMAL INTERFACES USING SAME
摘要
Thermal interfaces and methods include an array of carbon nanotubes aligned substantively perpendicularly from a substrate. One method includes arranging metal catalyst particles with a particular ligand on a fluid surface of a Langmuir-Blodgett trough. This forms uniformly spaced particles with spacing based on the particular ligand. The uniformly spaced metal catalyst particles are deposited on a substrate and carbon nanotubes are grown on the particles using chemical vapor deposition. A highly efficient thermal interface can be produced with a carbon nanotube packing ratio greater than fifty percent and used in a thermal switch or other device. In some methods, commercially available nanotubes are condensed on a substrate using carbon nanotubes with terminal carboxylic acids in solution and an amine monolayer on the substrate. Pretreatment of the nanotubes in a switch by applying heavy pressure between two surfaces results in good thermal conductivity between those surfaces at smaller operating pressures.
申请公布号
WO2005052179(A2)
申请公布日期
2005.06.09
申请号
WO2004US26173
申请日期
2004.08.11
申请人
THE JOHNS HOPKINS UNIVERSITY;OSIANDER, ROBERT,;SAMPLE, JENNIFER L.,