What are the Key Factors Affecting Phonon Transport in Nanomaterials?
Several factors influence phonon transport in nanomaterials:
Size and Shape: The dimensions of nanomaterials can significantly alter phonon transport. For example, phonon scattering is more pronounced in thin films and nanowires. Interfaces and Boundaries: Interfaces between different materials can reflect, absorb, or scatter phonons, impacting the overall thermal conductivity. Defects and Impurities: Imperfections within the crystal lattice can scatter phonons, reducing thermal transport efficiency. Phonon Spectrum: The distribution of phonon frequencies and modes, which depends on the material's atomic structure, also affects phonon transport.
