Browsing by Author "Mulu, Fikre"

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    Graphene and its Physical Properties
    (Addis Ababa University, 2013-03) Mulu, Fikre
    Graphene is a new two-dimensional material prepared succesfully in experiments several years ago. It is a single layer of carbon atoms arranged in a hexagonal (honeycomb) lattice. The two-dimensional nature of graphene leads to many intersting electronic, thermal, optical trans- parency, and high mobility properties. One particularly interesting property of graphene is that it exhibits the quantum Hall e ect at room temperature. In addition graphene is substantially stronger than steel, and it is very stretchable