Anisotropic Thermal Conductivity of Exfoliated Black Phosphorus

Hyejin Jang, Joshua D. Wood, Christopher R. Ryder, Mark C. Hersam, David G. Cahill*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

201 Scopus citations


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 thermoreflectance. The thermal conductivity along the zigzag direction is ≈2.5 times higher than that of the armchair direction.

Original languageEnglish (US)
Pages (from-to)8017-8022
Number of pages6
JournalAdvanced Materials
Issue number48
StatePublished - Dec 22 2015


  • black phosphorus
  • elastic constants
  • speed of sound
  • thermal conductivity
  • time-domain thermoreflectance

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Materials Science(all)


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