Classical Size Effects: Transport Perpendicular to Boundaries

This lecture explores the classical size effects in transport perpendicular to boundaries, focusing on nanoscale heat transfer and energy conversion. The instructor discusses the transport parallel and perpendicular to boundaries, emphasizing the importance of temperature gradients and electrical fields. The lecture covers topics such as nanoscale heat transfer, energy transport, Boltzmann equation, phonons, diffuse transport, and thermal conductivity. Various boundary conditions and their impact on transport phenomena are analyzed, including the behavior of electrons, phonons, and molecules. The lecture concludes with a summary of the classical size effects, highlighting the challenges and solutions in understanding transport phenomena at the nanoscale.