Anisotropic thermal diffusivity of aligned multiwall carbon nanotube arrays
A photothermoelectric technique was employed to determine the anisotropic thermal
diffusivity of thick arrays of multiwalled carbon nanotubes grown by chemical-vapor
deposition. The thermal diffusivity along the alignment direction was also determined using
a self-heating 3 ω method. The agreement between the measured thermal diffusivities with
the two techniques is between 2% and 13% in the tested temperature range. The thermal
diffusivity along the alignment direction decreases slightly with temperature in the 80–300‐K …
diffusivity of thick arrays of multiwalled carbon nanotubes grown by chemical-vapor
deposition. The thermal diffusivity along the alignment direction was also determined using
a self-heating 3 ω method. The agreement between the measured thermal diffusivities with
the two techniques is between 2% and 13% in the tested temperature range. The thermal
diffusivity along the alignment direction decreases slightly with temperature in the 80–300‐K …