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US 9,287,359 B1Granted
Oriented bottom-up growth of armchair graphene nanoribbons on germanium
AssigneeWisconsin Alumni Research Foundation
InventorsMichael Scott Arnold, Robert Michael Jacobberger
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Abstract
Graphene nanoribbon arrays, methods of growing graphene nanoribbon arrays and electronic and photonic devices incorporating the graphene nanoribbon arrays are provided. The graphene nanoribbons in the arrays are formed using a scalable, bottom-up, chemical vapor deposition (CVD) technique in which the (001) facet of the germanium is used to orient the graphene nanoribbon crystals along the [110] directions of the germanium.
Claims8
A graphene nanoribbon array comprising:
- a germanium substrate having a (001) facet;
- and
- a plurality of graphene nanoribbons on the (001) facet of the germanium substrate;
- wherein the graphene nanoribbons have aspect ratios of at least 5 and the average aspect ratio of the graphene nanoribbons in the plurality of graphene nanoribbons is at least 20;
- and
- further wherein the graphene nanoribbons have the armchair crystallographic direction of graphene running all the way along their long axes and an armchair configuration along their edges, and further wherein the long axes of the graphene nanoribbons are oriented along a [110] direction of the germanium.
3 more elements
Dependencies are inferred from the claim text.