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The Electronic Properties of Graphene

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Tutor: YangHuaTong
School: Northeast Normal University
Course: Theoretical Physics
Keywords: Graphene,Density of States,Conductivity
CLC: O481
Type: Master's thesis
Year:  2011
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Graphene is an ideal two-dimensional crystal; it not only exists very stable in the normally environment, but also show a lot of excellent properties. The electronic properties of graphene will vary with its size, shape and edge direction. Theoretical calculation of various geometrical shapes of single-layer graphene helps us to combine it with semiconductor industry. This paper was divided into three chapters.Chapter I introduces some basic properties of graphene, including the preparation of graphene, the structure and electronic properties of graphene.Chapter II describes the basic theory used in this paper, the non-equilibrium Green¡¯s function method based on the tight-binding model.Chapter III focuses on the electronic properties of graphene ribbons with different ends and widths, the most remarkable effect is the change of density of states and conductivity.
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