Figure 1: Thermal conduction versus temperature.
From: Length-dependent thermal conductivity in suspended single-layer graphene
(a) False-colour scanning electron microscopy image of the suspended device, which consists of two 25 × 20 μm2 Pt/SiNx membranes. The red and blue Pt coils are the heater (Rh) and sensor (Rs), which are thermally connected by suspended graphene (grey sheet in the middle). Scale bar, 5 μm. (b) SiNx membrane-based heater structures optimized for length-dependent studies. Scale bar, 20 μm. (c) Total measured thermal conductance (σ) versus temperature. The sample with 9 μm broke when cooling below 270 K during measurements. Also see Supplementary Fig. 7. (d) Thermal conductivity (κ) versus sample length (L) with negligible thermal contact resistance Rc at T=300 K and 120 K, respectively.
