Patent ID: 8580132

Claim:
A method for making a strip shaped graphene layer comprising: S 1 , providing a graphene film on a surface of a substrate; S 2 . 0 , making at least one drawn carbon nanotube film; S 2 , disposing a carbon nanotube composite on the graphene film, wherein the carbon nanotube composite comprises a carbon nanotube structure embedded in a polymer material, the carbon nanotube structure comprises the at least one drawn carbon nanotube film, and the at least one drawn carbon nanotube film comprises a plurality of carbon nanotube segments, each of the plurality of carbon nanotube segments being substantially parallel to each other and separated from each other by a strip-shaped gap; S 3 , removing a portion of the polymer material to expose the plurality of carbon nanotube segments; S 4 , etching the plurality of carbon nanotube segments and the graphene film covered by the plurality of carbon nanotube segments; and S 5 , removing a remaining portion of the polymer material.