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Universal mechanical exfoliation of large-area 2D crystals
Open accessAbstract
Two-dimensional materials provide extraordinary opportunities for exploring phenomena arising in atomically thin crystals. Beginning with the first isolation of graphene, mechanical exfoliation has been a key to provide high-quality two-dimensional materials, but despite improvements it is still limited in yield, lateral size and contamination. Here we introduce a contamination-free, one-step and universal Au-assisted mechanical exfoliation method and demonstrate its effectiveness by isolating 40 types of single-crystalline monolayers, including elemental two-dimensional crystals, metal-dichalcogenides, magnets and superconductors. Most of them are of millimeter-size and high-quality, as shown by transfer-free measurements of electron microscopy, photo spectroscopies and electrical transport. Large suspended two-dimensional crystals and heterojunctions were also prepared with high-yield. Enhanced adhesion between the crystals and the substrates enables such efficient exfoliation, for which we identify a gold-assisted exfoliation method that underpins a universal route for producing large-area monolayers and thus supports studies of fundamental properties and potential application of two-dimensional materials.
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Self-citationVan der Waals heterostructures
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Self-citation2D Materials in Flexible Electronics: Recent Advances and Future Prospectives
Katiyar, A. K., Hoang, A. T., Xu, D., Hong, J., Kim, B. J., Ji, S., & Ahn, J.-H. (2024) · Chemical Reviews · doi:10.1021/acs.chemrev.3c00302 · Cited by 363
Metadata
- Authors
- Huang, Y., Pan, Y.-H., Yang, R., Bao, L.-H., Meng, L., Luo, H.-L., Cai, Y.-Q., Liu, G.-D., Zhao, W.-J., Zhou, Z., Wu, L.-M., Zhu, Z.-L., Huang, M., Liu, L.-W., Liu, L., Cheng, P., Wu, K.-H., Tian, S.-B., Gu, C.-Z., Shi, Y.-G., Guo, Y.-F., Cheng, Z. G., Hu, J.-P., Zhao, L., Yang, G.-H., Sutter, E., Sutter, P., Wang, Y.-L., Ji, W., Zhou, X.-J., & Gao, H.-J.
- Venue
- Nature Communications
- Published
- 2020-05-15
- Volume
- 11
- Issue
- 1
- Pages
- 2453-2453
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W3024139038
- Cited by
- 816
- References
- 7
- FWCI
- 37.20
- Type
- journal article
- Language
- en
- Open access
- gold
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- Huang, Y., Pan, Y.-H., Yang, R., Bao, L.-H., Meng, L., Luo, H.-L., Cai, Y.-Q., Liu, G.-D., Zhao, W.-J., Zhou, Z., Wu, L.-M., Zhu, Z.-L., Huang, M., Liu, L.-W., Liu, L., Cheng, P., Wu, K.-H., Tian, S.-B., Gu, C.-Z., . . . Gao, H.-J. (2020). Universal mechanical exfoliation of large-area 2D crystals. Nature Communications. https://doi.org/10.1038/s41467-020-16266-w
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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