Back to results
US 2019/0296158 A1Published application
Graphene-contacted nanotube photodetector
AssigneeInternational Business Machines Corporation
InventorsAbram L. Falk, Kuan-Chang Chiu, Damon B. Farmer, Shu-Jen Han
Life of this patent
Estimating the term…
Abstract
Photodetectors and methods of forming the same include a first electrode. A carbon nanotube film is formed on the first electrode. A first graphene sheet is formed on the carbon nanotube film. A second graphene sheet is configured to exert an electrical field on the first graphene sheet that changes an electrical property of the first graphene sheet.
Claims20
A photodetector, comprising:
- a first electrode;
- a carbon nanotube film formed on the first electrode;
- a first graphene sheet formed on the carbon nanotube film;
- a second graphene sheet configured to exert an electrical field on the first graphene sheet that changes an electrical property of the first graphene sheet.
1 more element
A method of forming a photodetector, comprising:
- positioning a carbon nanotube film on a first electrode;
- positioning a first graphene sheet on the carbon nanotube film;
- positioning a second graphene sheet on the first graphene sheet that exerts an electrical field on the first graphene sheet that changes an electrical property of the first graphene sheet.
A method of forming a photodetector, comprising:
- positioning a first graphene sheet on a transparent substrate;
- forming a first insulator layer on the first graphene sheet;
- positioning a second graphene sheet on the first insulator layer;
- positioning a carbon nanotube film on the second graphene sheet;
- positioning a third graphene sheet on the carbon nanotube film;
- positioning a second insulator layer on the third graphene sheet;
- and
- positioning a fourth graphene sheet on the second insulator layer.
5 more elements
Dependencies are inferred from the claim text.