The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.
Elastic straining of free-standing monolayer graphene
Open accessAbstract
The sp 2 nature of graphene endows the hexagonal lattice with very high theoretical stiffness, strength and resilience, all well-documented. However, the ultimate stretchability of graphene has not yet been demonstrated due to the difficulties in experimental design. Here, directly performing in situ tensile tests in a scanning electron microscope after developing a protocol for sample transfer, shaping and straining, we report the elastic properties and stretchability of free-standing single-crystalline monolayer graphene grown by chemical vapor deposition. The measured Young’s modulus is close to 1 TPa, aligning well with the theoretical value, while the representative engineering tensile strength reaches ~50-60 GPa with sample-wide elastic strain up to ~6%. Our findings demonstrate that single-crystalline monolayer graphene can indeed display near ideal mechanical performance, even in a large area with edge defects, as well as resilience and mechanical robustness that allows for flexible electronics and mechatronics applications.
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Cites
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Metadata
- Authors
- Cao, K., Feng, S., Han, Y., Gao, L., Hue Ly, T., Xu, Z., & Lu, Y.
- Venue
- Nature Communications
- Published
- 2020-01-15
- Volume
- 11
- Issue
- 1
- Pages
- 284-284
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2999123343
- Cited by
- 451
- References
- 34
- FWCI
- 21.91
- Type
- journal article
- Language
- en
- Open access
- gold
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