Thermal and thermoelectric properties of graphene.

摘要: The subject of thermal transport at the mesoscopic scale and in low-dimensional systems is interesting for both fundamental research practical applications. As first example truly two-dimensional materials, graphene has exceptionally high conductivity, thus provides an ideal platform research. Here we review recent studies on thermoelectric properties graphene, with emphasis experimental progresses. A general physical picture based Landauer formalism introduced to understand underlying mechanisms. We show that superior conductivity contributed not only by large ballistic conductance but also very long phonon mean free path (MFP). MFP, explained nature sample purity results important isotope effects size conduction. In terms various scattering mechanisms several approaches are suggested control conductivity. Among them, introducing rough boundaries weakly-coupled interfaces promising ways suppress conduction effectively. discuss Seebeck effect graphene. Graphene itself might be a good material. However, concepts developed applied improve performance other materials.