Method of making field emitter

摘要

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.

主权项

1. 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.