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Graphyne Better Than Graphene?

  1. Feb 24, 2012 #1
    Graphyne is a variant of graphene which has Carbon-Carbon triple-bonds:




    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.

    Last edited: Feb 24, 2012
  2. jcsd
  3. Feb 24, 2012 #2
    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. Feb 25, 2012 #3
    I guess this is how it behaves under strain:

  5. Feb 25, 2012 #4


    Last edited: Feb 25, 2012
  6. Mar 18, 2012 #5
    I would like to ask what is the way of making graphyne ?
  7. Mar 23, 2012 #6
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