Anisotropic Thermal Conductivity of Exfoliated Black Phosphorus

• Published in: Advanced materials (Weinheim) Vol. 27; no. 48; pp. 8017 - 8022
• Main Authors: Jang, Hyejin, Wood, Joshua D., Ryder, Christopher R., Hersam, Mark C., Cahill, David G.
• Format: Journal Article
• Language: English
• Published: Germany Blackwell Publishing Ltd 22.12.2015; Wiley
• Subjects: Anisotropy; black phosphorus; catalysis (homogeneous), catalysis (heterogeneous), solar (photovoltaic), solar (fuels), photosynthesis (natural and artificial), bio-inspired, hydrogen and fuel cells, electrodes - solar, defects, charge transport, spin dynamics, membrane, materials and chemistry by design, optics, synthesis (novel materials), synthesis (self-assembly); Chairs; Crystal structure; elastic constants; Exfoliation; Heat transfer; Models, Molecular; Molecular Conformation; Phosphorus; Phosphorus - chemistry; Pressure; speed of sound; Temperature; Thermal Conductivity; time-domain thermoreflectance; Two dimensional; speed of sound; time-domain thermoreflectance; black phosphorus; thermal conductivity; elastic constants
• ISSN: 0935-9648; 1521-4095
• DOI: 10.1002/adma.201503466

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.