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Graphene's current capacity?

  1. Dec 27, 2015 #1
    Some articles would state that graphene(1 pure sheet) can carry x1000 the amount of current copper can. When I researched it, there isn't anything indicating so. Are those articles true? Or is it a lie?

    I understand how graphene can be slightly better, but that is unrealistic... it is a wondrous material, yet that huge difference in current capacity and it's weight difference, it sounds too good to be true.
  2. jcsd
  3. Dec 27, 2015 #2
    Carrier mobilities in graphene are exceptionally high, up to 200, 000 cm^2/Vs at room temperature. But the number of carriers is low, so the specific conductivity is not that different from metals like silver or copper.
    A thin sheet can carry a lot of current when heat is lead away, there is no simple way of putting a number on that.
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