Influence of polymeric residue on the thermal conductivity of suspended bilayer graphene.
basic_science · Level V
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- Record sourced from PubMed, PMID 21314164.
- Also identified by DOI 10.1021/nl104156y.
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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 ∝ T(1.5) 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.