# Influence of Polymeric Residue on the Thermal Conductivity of Suspended Bi-Layer Graphene

### Citation:

M. T. Pettes, Jo, I., Yao, Z., and Shi, L., “Influence of Polymeric Residue on the Thermal Conductivity of Suspended Bi-Layer Graphene,” Nano Letters, vol. 11, no. 3, pp. 1195–1200, 2011.

### Abstract:

The thermal conductivity (κ) of two bilayer graphene samples each suspended between two microresistance thermometers was measured to be 620 ± 80 and 560 ± 70 W m−1 K−1 at room temperature and exhibits a κ T1.5 behavior at temperatures (T) between 50 and 125 K. The lower κ than that calculated for suspended graphene along with the temperature dependence is attributed to scattering of phonons in the bilayer graphene by a residual polymeric layer that was clearly observed by transmission electron microscopy.