What are the Mechanisms Behind Thermal Conductivity in Nanomaterials?
Thermal conductivity in nanomaterials is primarily governed by phonons (lattice vibrations) and, in some cases, electrons. In materials with low-dimensional structures, such as graphene and carbon nanotubes, phonon transport can be highly efficient due to fewer scattering events. However, in nanocomposites, the interfaces between different materials can scatter phonons and reduce overall thermal conductivity.