Method of making field emitter
AssigneesTsinghua University, Hon Hai Precision Industry Co., Ltd.
InventorsYang Wei, Shou-Shan Fan
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Abstract
A method of making a field emitter includes following steps. A carbon nanotube layer is provided, and the carbon nanotube layer includes a first surface and a second surface opposite to each other. A carbon nanotube composite layer is formed via electroplating a first metal layer on the first surface and electroplating a second metal layer on the second surface. A first carbon nanotube layer and a second carbon nanotube layer is formed by separating apart the carbon nanotube composite layer, wherein a fracture surface is formed in the carbon nanotube composite layer, a number of first carbon nanotubes in the first carbon nanotube layer are exposed from the fracture surface, and a number of second carbon nanotubes in the second carbon nanotube layer are exposed from the fracture surface.
Claims17
A method of making a field emitter, the method comprising:
- providing a carbon nanotube layer comprising a first surface and a second surface opposite to the first surface, wherein the carbon nanotube layer comprises a plurality of carbon nanotubes;
- forming a carbon nanotube composite layer via electroplating a first metal layer on the first surface and electroplating a second metal layer on the second surface;
- and
- dividing the carbon nanotube composite layer, wherein the first metal layer is separated into a first portion and a second portion, the carbon nanotube layer is divided into a first carbon nanotube layer comprising a plurality of first carbon nanotubes and a second carbon nanotube layer comprising a plurality of second carbon nanotubes, the second metal layer is separated into a third portion and a fourth portion, the first carbon nanotube layer is sandwiched between the first portion and the third portion, the second carbon nanotube layer is sandwiched between the second portion and the fourth portion, some of the plurality of first carbon nanotubes extend out of the first portion and the second portion, and some of the plurality of second carbon nanotubes extend out of the second portion and the fourth portion.
A method of making a field emitter, the method comprising:
- providing a first metal layer;
- attaching a carbon nanotube layer on the first metal layer, wherein the carbon nanotube layer comprises a first surface and a second surface opposite to each other, the first surface is attached on the first metal layer, and the carbon nanotube layer comprises a plurality of carbon nanotubes;
- forming a carbon nanotube composite layer via electroplating a second metal layer on the second surface;
- and
- forming a first carbon nanotube composite layer and a second carbon nanotube composite layer by separating apart the carbon nanotube composite layer, wherein the first carbon nanotube composite layer comprises a first fracture surface, the second carbon nanotube composite layer comprises a second fracture surface, a plurality of first carbon nanotubes extend out of the first fracture surface, a plurality of second carbon nanotubes extend out of the second fracture surface.
A method of making a field emitter, the method comprising:
- providing a carbon nanotube layer comprising a first surface and a second surface opposite to each other, wherein the carbon nanotube layer comprises a plurality of carbon nanotubes and defines a plurality of apertures;
- forming a carbon nanotube composite layer via electroplating a first metal layer on the first surface and electroplating a second metal layer on the second surface, wherein the carbon nanotube layer is sandwiched between the first metal layer and the second metal layer, and the first metal layer and the second metal layer penetrate the plurality of apertures and combined together;
- and
- separating apart the carbon nanotube composite layer by applying a first force and a second force opposite to each other, wherein the first force and the second force are parallel with the carbon nanotube composite layer, a fracture surface is formed by separating the carbon nanotube composite layer, the carbon nanotube layer is divided into a first carbon nanotube layer and a second carbon nanotube layer;
- a plurality of first carbon nanotubes in the first carbon nanotube layer are exposed from the fracture surface, and a plurality of second carbon nanotubes in the second carbon nanotube layer are exposed from the fracture surface.
Dependencies are inferred from the claim text.