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Elastic Properties of Chemical-Vapor-Deposited Monolayer MoS2, WS2, and Their Bilayer Heterostructures
Open accessAbstract
Elastic properties of materials are an important factor in their integration in applications. Chemical vapor deposited (CVD) monolayer semiconductors are proposed as key components in industrial-scale flexible devices and building blocks of two-dimensional (2D) van der Waals heterostructures. However, their mechanical and elastic properties have not been fully characterized. Here we report high 2D elastic moduli of CVD monolayer MoS2 and WS2 (∼170 N/m), which is very close to the value of exfoliated MoS2 monolayers and almost half the value of the strongest material, graphene. The 2D moduli of their bilayer heterostructures are lower than the sum of 2D modulus of each layer but comparable to the corresponding bilayer homostructure, implying similar interactions between the hetero monolayers as between homo monolayers. These results not only provide deep insight into understanding interlayer interactions in 2D van der Waals structures but also potentially allow engineering of their elastic properties as desired.
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Cites
Electronics and optoelectronics of two-dimensional transition metal dichalcogenides
Wang, Q. H., Kalantar-Zadeh, K., Kis, A., Coleman, J. N., & Strano, M. S. (2012) · Nature Nanotechnology · doi:10.1038/nnano.2012.193 · Cited by 16,374
Cited by
Photocurrent generation with two-dimensional van der Waals semiconductors
Buscema, M., Island, J. O., Groenendijk, D. J., Blanter, S. I., Steele, G. A., van der Zant, H. S. J., & Castellanos-Gomez, A. (2015) · Chemical Society Reviews · doi:10.1039/c5cs00106d · Cited by 1,051
All Chemical Vapor Deposition Growth of MoS2:h-BN Vertical van der Waals Heterostructures
Wang, S., Wang, X., & Warner, J. H. (2015) · ACS Nano · doi:10.1021/acsnano.5b00655 · Cited by 389
Band Alignment and Minigaps in Monolayer MoS2-Graphene van der Waals Heterostructures
Pierucci, D., Henck, H., Avila, J., Balan, A., Naylor, C. H., Patriarche, G., Dappe, Y. J., Silly, M. G., Sirotti, F., Johnson, A. T. C., et al. (2016) · Nano Letters · doi:10.1021/acs.nanolett.6b00609 · Cited by 365
Two‐dimensional materials: From mechanical properties to flexible mechanical sensors
Jiang, H., Zheng, L., Liu, Z., & Wang, X. (2020) · InfoMat · doi:10.1002/inf2.12072 · Cited by 322
Jiang, P., Qian, X., Gu, X., & Yang, R. (2017) · Advanced Materials · doi:10.1002/adma.201701068 · Cited by 239
Metadata
- Authors
- Liu, K., Yan, Q., Chen, M., Fan, W., Sun, Y., Suh, J., Fu, D., Lee, S., Zhou, J., Tongay, S., Ji, J., Neaton, J. B., & Wu, J.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-08-19
- Volume
- 14
- Issue
- 9
- Pages
- 5097-5103
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2064440479
- Cited by
- 686
- References
- 1
- FWCI
- 13.85
- Type
- journal article
- Language
- en
- Open access
- green
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- Liu, K., Yan, Q., Chen, M., Fan, W., Sun, Y., Suh, J., Fu, D., Lee, S., Zhou, J., Tongay, S., Ji, J., Neaton, J. B., & Wu, J. (2014). Elastic Properties of Chemical-Vapor-Deposited Monolayer MoS2, WS2, and Their Bilayer Heterostructures. Nano Letters. https://doi.org/10.1021/nl501793a
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