title: Anisotropic Thermal Conductivity of Exfoliated Black Phosphorus.
abstract: The anisotropic thermal conductivity of passivated black phosphorus (BP), a reactive two-dimensional material with strong in-plane anisotropy, is ascertained. The room-temperature thermal conductivity for three crystalline axes of exfoliated BP is measured by time-domain thermo-reflectance. The thermal conductivity along the zigzag direction is ≈2.5 times higher than that of the armchair direction.
authors.affiliation: Department of Materials Science and Engineering and Materials Research Laboratory, University of Illinois, Urbana, IL, 61801, USA.
authors.forename: Hyejin
authors.initials: H
authors.lastname: Jang
authors.affiliation: Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA.
authors.forename: Joshua D
authors.initials: JD
authors.lastname: Wood
authors.affiliation: Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA.
authors.forename: Christopher R
authors.initials: CR
authors.lastname: Ryder
authors.affiliation: Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA.|Department of Chemistry, Department of Medicine, Northwestern University, Evanston, IL, 60208, USA.
authors.forename: Mark C
authors.initials: MC
authors.lastname: Hersam
authors.affiliation: Department of Materials Science and Engineering and Materials Research Laboratory, University of Illinois, Urbana, IL, 61801, USA.
authors.forename: David G
authors.initials: DG
authors.lastname: Cahill
mesh_terms: D016880:Anisotropy; D008958:Models, Molecular; D008968:Molecular Conformation; D010758:Phosphorus / Q000737:chemistry*; D011312:Pressure; D013696:Temperature; D013814:Thermal Conductivity
chemical_list: D010758:Phosphorus
keywords: black phosphorus; elastic constants; speed of sound; thermal conductivity; time-domain thermoreflectance