Friday, June 4, 2010

Towards silicene

What if you could have all the advantages of graphene, but starting from Silicon (with the additional advantages that his means) instead of Carbon? Silicene might be the answer, and there are hints that it might be feasible, as this Applied Physics Letter shows: "Graphene-like silicon nanoribbons on Ag(110): A possible formation of silicene".
Scanning tunneling microscopy (STM) and ab initio calculations based on density functional theory (DFT) were used to study the self-aligned silicon nanoribbons on Ag(110) with honeycomb, graphene-like structure. The silicon honeycombs structure on top of the silver substrate is clearly observed by STM, while the DFT calculations confirm that the Si atoms adopt spontaneously this new silicon structure.

Although some people think it is not possible.

1 comment:

  1. Indeed, silicene is a very important future material. Calculations
    have shown that they might have interesting FET as well as storage property as well. Please see this very recent paper from our group:

    http://pubs.rsc.org/en/Content/ArticleLanding/2011/CP/c0cp02580a

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