I have a confusion regarding the multi layers graphene. I need a clear idea about the maximum no of layers in multilayers graphene. Also i need some literature references if possile to support the answer.
thanks
Hi there, graphene is the common name to a single layer (mono-layer). Graphite is a three-dimensional material. Few-layers graphene is generally reserved to two (bi-layer), thee, etc. As a rule of thumb, I would say that multi-layer graphene would go up to 5-10 layers (and 10 being too many). From a more physical point of view, I would say that when your multi-layer graphene shows properties of 3-dimensional graphite, you cannot call it few-layers graphene anymore.
As for reference, Geim described: "Graphene is a single atomic plane of graphite, which – and this is essential – is sufficiently isolated from its
environment to be considered free-standing." in his Science paper (DOI: 10.1126/science.1158877).
Also, this question was asked before in this forums. You can read the answers here: https://www.researchgate.net/post/Any_ideas_on_multilayer_graphene-graphite_boundaries
Best of all, since you need references, is this paper in Carbon (the Elsevier Journal): "All in the graphene family – A recommended nomenclature for two-dimensional carbon materials" from Alberto Bianco, Hui-Ming Cheng, Toshiaki Enoki, Yury Gogotsi and Robert H. Hurt, , Volume 65, December 2013, Pages 1–6. The DOI is doi:10.1016/j.carbon.2013.08.038.
In the paper above, there clear cut definitions for graphene, few-layer graphene, multi-layer graphene and graphite.
Strictly speaking, the term graphene in its purest form means a single sheet of carbon atoms only. However, generally this term is accepted for materials that are up to ten layers thick.
http://arxiv.org/pdf/0910.5841
http://link.springer.com/chapter/10.1007/978-1-4471-6428-9_1
http://goldbook.iupac.org/G02683.html
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Materials Science
- Materials
- Carbon Materials
- Graphite
- Graphene