▎ 摘　　要

Based on the quantum-junction transmission/Green's function formalism and the dynamical matrix/DFT, we find the phonon wave features result in bimodal resonant transmission in the interflake conductance of H or O edge-passivated graphene. The low-frequency resonant transport mode is due to the weak interaction between the flakes, while the high-frequency resonant transport mode depends on the passivated species and brings the temperature dependence. The phonon transport polarized in the transport directions is dominant because of the asymmetric charge distribution of ... C-O-H-C ... and this contributes to the conductance. Thermal conductance decreases due to the passivation junctions, and the electronic thermal conductance becomes negligible except for the O-H junction at high temperatures.