Patterned Graphene Structures On Silicon Carbide
De Heer, Walt A.
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In a method for making graphitic ribbons in a face of a carbide crystal (110), in which an elongated trench (120) is formed along a predetermined path in the face (112) of the carbide crystal (110), the trench (120) including a horizontal floor (124) coupling two vertical walls (122), the trench (120) following a path on which it is desired to form a graphitic ribbon (130). The carbide crystal (110) and the trench (120) are subjected to an annealing environment for an amount of time sufficient to cause a graphene ribbon (130) having a V-shaped cross section to form along the predetermined path of the trench (120).
- Georgia Tech Patents