Coexistence of size-dependent and size-independent thermal conductivities in phosphorene
By Liyan Zhu, Gang Zhang, Baowen Li. 2014
188 citations recorded by the source corpus.
Thermal conductivity of single layer black phosphorus (BP) is investigated by combining density functional calculations and Peierls-Boltzmann transport equation. Differing from isotropic and divergent thermal conductivities in two-dimensional graphene and MoS$_2$, an compelling co-existence of size-dependent and size-independent thermal conductivities are discovered for single layer BP along zigzag (ZZ) and armchair (AM) direction, respectively. Besides, thermal conductivities in single layer BP are found to be highly anisotropic because of orientation dependent group velocities, e.g., thermal conductivities at 300 K are 83.5 and 24.3 W/m-K along ZZ and AM directions for single layer BP with a size of 10 $\mu m$, respectively.
Subfields: Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/8b2a8ad7cff53efffaf1593c6e9f83e3ea1f64a3
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In Materials Chemistry
Citations in the corpus
- Survey of ab initio phonon thermal transport (2018, background): “materials [165], questionable convergence/divergence with infinite system size [15,53,103,166,167], validity of the relaxation time”
- Recent Advances in the Study of Phosphorene and its Nanostructures (2017, methodology): “Thermal conductivity of phosphorene decreases with temperature by following a power-law λ»T¡1 (see Figure 18c), which is expected for a phonon-dominated thermal conductivity.(140,150) The strong anisotropy in thermal conductivity is only slightly diminished with temperature.”
- Strain effects on thermoelectric properties of two-dimensional materials (2015, background): “From both theoretical and experimental investigations, it has been reported that there are strong directional dependences in electrical [109-111] and thermal conductance [115, 141, 142] of monolayer phosphorene.”
- Colloquium: Phononic thermal properties of two-dimensional materials (2017, methodology): “…thermal conductivity values from both the first-principles calculations (Fugallo et al., 2014; Gu and Yang, 2014, 2015; Lindsay et al., 2014; Zhu, Zhang, and Li, 2014; Cepellotti et al., 2015; Jain and McGaughey, 2015; Wang et al., 2015; Peng et al., 2016; Qin and Hu, 2016; Zeraati et al.,…”