Review Article

Thermal Transport across Solid Interfaces with Nanoscale Imperfections: Effects of Roughness, Disorder, Dislocations, and Bonding on Thermal Boundary Conductance

Figure 9

Thermal boundary conductances at the two different dislocation dense GaSb/GaAs interfaces from our previous work [23]. These interfaces have dislocation densities ranging from dislocations cm−2 and 109–1011 dislocations cm−2. For comparison, the plot includes previously measured data at TiN/MgO [29] and Bi/diamond [30] interfaces. DMM calculations are shown for the GaSb/GaAs interfaces, which drastically overpredict the measured data since the traditional formulation of the DMM does not account for dislocations interfaces. It is also interesting to note that roughly a two order of magnitude change in dislocation density only leads to a factor of two change in thermal boundary conductance.
682586.fig.009