ABSTRACT
Carbon is a fascinating element in the periodic table, which is composed of a few allotropes. To date, graphene is the “youngest” allotrope in the carbon family. Simultaneously, graphene is also the basic building block of other important carbon allotropes. Since Geim group isolated “free” and “perfect” graphene sheets and demonstrated the unprecedented electronic properties of graphene in 2004, considerable attention has been given to the study on graphene owing to its high mobility, Hall Effect, transparency, mechanical strength, and thermal conductivity [1,2].
