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Anisotropic in-plane thermal conductivity observed in few-layer black phosphorus
Open accessAbstract
Black phosphorus has been revisited recently as a new two-dimensional material showing potential applications in electronics and optoelectronics. Here we report the anisotropic in-plane thermal conductivity of suspended few-layer black phosphorus measured by micro-Raman spectroscopy. The armchair and zigzag thermal conductivities are ∼20 and ∼40 W m−1 K−1 for black phosphorus films thicker than 15 nm, respectively, and decrease to ∼10 and ∼20 W m−1 K−1 as the film thickness is reduced, exhibiting significant anisotropy. The thermal conductivity anisotropic ratio is found to be ∼2 for thick black phosphorus films and drops to ∼1.5 for the thinnest 9.5-nm-thick film. Theoretical modelling reveals that the observed anisotropy is primarily related to the anisotropic phonon dispersion, whereas the intrinsic phonon scattering rates are found to be similar along the armchair and zigzag directions. Surface scattering in the black phosphorus films is shown to strongly suppress the contribution of long mean-free-path acoustic phonons.
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Zeng, M., Xiao, Y., Liu, J., Yang, K., & Fu, L. (2018) · Chemical Reviews · doi:10.1021/acs.chemrev.7b00633 · Cited by 574
Applications of Phosphorene and Black Phosphorus in Energy Conversion and Storage Devices
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Recent Progress of Two-Dimensional Thermoelectric Materials
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Emerging in‐plane anisotropic two‐dimensional materials
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Elemental two-dimensional nanosheets beyond graphene
Kong, X., Liu, Q., Zhang, C., Peng, Z., & Chen, Q. (2017) · Chemical Society Reviews · doi:10.1039/c6cs00937a · Cited by 346
Metadata
- Authors
- Luo, Z., Maassen, J., Deng, Y., Du, Y., Garrelts, R. P., Lundstrom, M. S., Ye, P. D., & Xu, X.
- Venue
- Nature Communications
- Published
- 2015-10-16
- Volume
- 6
- Issue
- 1
- Pages
- 8572-8572
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W1959197396
- Cited by
- 662
- References
- 6
- FWCI
- 27.71
- Type
- journal article
- Language
- en
- Open access
- gold
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- Luo, Z., Maassen, J., Deng, Y., Du, Y., Garrelts, R. P., Lundstrom, M. S., Ye, P. D., & Xu, X. (2015). Anisotropic in-plane thermal conductivity observed in few-layer black phosphorus. Nature Communications. https://doi.org/10.1038/ncomms9572
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