Graphene-based multi-modal sensors
First Claim
Patent Images
1. A method for fabricating a composite film structure, the method comprising:
- determining a desired morphology for a metallic layer of the composite film structure;
selecting a first metal substrate based on the determining;
transferring a graphene layer onto the first metal substrate;
depositing the metallic layer on the graphene layer to achieve the desired morphology, wherein a surface energy difference between the first metal substrate and the deposited metallic layer results in the desired morphology of the metallic layer, the desired morphology comprises a layer of nanoislands having controlled and uniform inter-nanoisland separation and a distance between edges of nanoislands in the metallic layer is on the order of about 2 Å
to a few nanometers, and removing the first metal substrate from the graphene and the deposited metallic layer to form the composite film structure.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for fabricating a composite film structure, the method includes determining a desired morphology for a metallic layer of the composite film structure, selecting a first metal substrate based on the determining, transferring a graphene layer onto the first metal substrate, depositing the metallic layer on the graphene layer to achieve the desired morphology, and removing the first metal substrate from the graphene and the deposited metallic layer to form the composite film structure. A surface energy difference between the first metal substrate and the deposited metallic layer results in the desired morphology of the metallic layer.
-
Citations
13 Claims
-
1. A method for fabricating a composite film structure, the method comprising:
-
determining a desired morphology for a metallic layer of the composite film structure; selecting a first metal substrate based on the determining; transferring a graphene layer onto the first metal substrate; depositing the metallic layer on the graphene layer to achieve the desired morphology, wherein a surface energy difference between the first metal substrate and the deposited metallic layer results in the desired morphology of the metallic layer, the desired morphology comprises a layer of nanoislands having controlled and uniform inter-nanoisland separation and a distance between edges of nanoislands in the metallic layer is on the order of about 2 Å
to a few nanometers, and removing the first metal substrate from the graphene and the deposited metallic layer to form the composite film structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method of forming a substrate for surface-enhanced Raman scattering, the method comprising:
-
depositing a graphene layer on a first metal substrate; depositing a plurality of metallic nanoislands on the graphene layer, wherein a surface energy difference between the first metal substrate and the deposited metallic nanoislands results in the desired morphology of the metallic nanoislands, the desired morphology comprises a layer of nanoislands having controlled and uniform inter-nanoisland separation and a distance between edges of nanoislands in the metallic layer is on the order of about 2 Å
to a few nanometers;
removing the first metal substrate from the graphene and the deposited plurality of metallic nanoislands to form the substrate for surface-enhanced Raman scattering. - View Dependent Claims (10, 11, 12, 13)
-
Specification