First principles investigation of high thermal conductivity in hexagonal germanium carbide(2H-GeC)

Designing and searching for a high thermal conductivity material in both bulk nanoscale is highly demanding electronics cooling. In this work, we studied the of 2H-Germanium Carbide(2H-GeC) using first principles calculations. At 300 K, are reporting 1350 Wm?1K?1 1050 along a-axis c-axis respectively pure 2H-GeC. These values 130% higher than 2H-silicon carbide 20% lower cubic germanium carbide(c-GeC). We analyzed phonon group velocities, scattering rates mode contribution from acoustic optical phonons. also nanostructured 2H-GeC heat dissipation nanoelectronics. room temperature, ?65 at nanometer length scales(L) 100 nm equal to that c-GeC. This result suggests that, will be promising management applications micro/nano electronics.