Electron emission source based on graphene layer and method for making the same
AssigneesTsinghua University, Hon Hai Precision Industry Co., Ltd.
InventorsXin-He Yang, Peng Liu, Shou-Shan Fan
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Abstract
An electron emission source is provided. The electron emission source includes a first electrode, an insulating layer, and a second electrode. The first electrode, the insulating layer, and the second electrode are successively stacked with each other. the second electrode is a graphene layer, and the graphene layer is an electron emission end to emit electron. A thickness of the graphene layer ranges from about 0.1 nanometers to about 50 nanometers.
Claims9
An electron emission source, comprising a first electrode, an insulating layer, and a second electrode successively stacked in a said order, the second electrode is a graphene layer, a thickness of the graphene layer ranges from approximately 0.1 nanometers to approximately 50 nanometers, and the graphene layer defines an electron emission end to emit electrons.
A method for making an electron emission source, comprising:
- depositing an insulating layer on a surface of a first electrode, wherein the insulating layer comprises a first surface and a second surface opposite to the first surface, and the first electrode is in contact with the first surface of the insulating layer;
- and
- depositing a second electrode on the second surface of the insulating layer, wherein the second electrode is a graphene layer, a thickness of the graphene layer ranges from approximately 0.1 nanometers to approximately 50 nanometers, and the graphene layer defines an electron emission end to emit electrons.
Dependencies are inferred from the claim text.