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Anisotropic Thermal Conductivity of Exfoliated Black Phosphorus

2015; Volume: 27; Issue: 48 Linguagem: Inglês

10.1002/adma.201503466

1521-4095

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

Graphene research and applications

We ascertain the anisotropic thermal conductivity of alumina passivated black phosphorus (BP), a reactive 2D nanomaterial with strong in-plane anisotropy. We measure the room temperature thermal conductivity by time-domain thermoreflectance for the three crystalline axes of exfoliated BP. The thermal conductivity along the zigzag direction (86 +/- 8 W/(m*K)) is ~2.5 times higher than that of the armchair direction (34 +/- 4 W/(m*K)).