Graphyne Better Than Graphene?

  1. Graphyne is a variant of graphene which has Carbon-Carbon triple-bonds:

    http://physics.aps.org/articles/v5/24

    Image:

    [​IMG]

    I'm thinking that it wouldn't have superior mechanical properties, since the presence of the triple bond would give a polar character that weakens the SP2-hybridization. However that same polar character might have useful benefits for electron mobility and bandgap properties.

    Opinions?
     
    Last edited: Feb 24, 2012
  2. jcsd
  3. Interesting! These probably would be very similar to graphene, but definitely lighter. I'm also betting that since they don't have as symmetrical a shape as graphene, they have some sort of directional dependence on their ability to resist stress/strain, so they might not be as good as graphene for applications like super-strong cables or flexible circuits/processors. They might be tensionally stronger by mass than graphene, but probably similar if not weaker by volume, so perhaps they'd be better for super light cables [space elevator?]. I'm also betting that they're even harder than graphene to synthesize.

    I agree that their electron transport and energy band properties would probably be quite different from graphene. They might even have a directional dependence on their electron transport properties and band gap properties, which could have any number of interesting applications.
     
  4. I guess this is how it behaves under strain:

    https://www.youtube.com/watch?v=WOhjpb4_goE
     
  5. http://www.sciencedirect.com/science/article/pii/S0008622311003861

    http://prl.aps.org/abstract/PRL/v108/i8/e086804

     
    Last edited: Feb 25, 2012
  6. I would like to ask what is the way of making graphyne ?
     
Know someone interested in this topic? Share a link to this question via email, Google+, Twitter, or Facebook

Have something to add?
: graphene