The change of microstructure and thermal properties in ion irradiated carbon nanotube mats as a function of ion penetration depth
Academic Article
Overview
Research
Identity
Additional Document Info
Other
View All
Overview
abstract
A stack of three carbon nanotube (CNT) mats was irradiated with 3MeV He ions. The change in structural and thermal properties of individual mats as a function of ion penetration depth was characterized using electron microscopy and laser flash techniques. Ion irradiation can enhance thermal conductivity of the mats by introducing inter-tube displacements, which improve phonon transport across adjacent nanotubes. The enhancement, however, is reduced at higher damage levels due to the increasing phonon-defect scattering within the tubes. This study demonstrates the feasibility of using ion irradiation to manipulate thermal transport in carbon nanotubes.
