Figure 5
From: Colossal figure of merit and compelling HER catalytic activity of holey graphyne
(a) Calculated and fitted (κl ∝ 1/T) κl as a function of temperature, (b) cumulative lattice thermal conductivity (κcl) as a function of phonon mean free path (MFP), (c) phonon scattering rates, and (d) phonon group velocities at 300 K as a function of phonon frequency. The black arrows in (c and d) represent frequency 2.55 THz of first optical phonon mode at Γ point.
