Patent ID: 9251989
Filing Date: 2016-02-02
CPC Classification: B82Y,H01J,Y10S

Claim Text:
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.