Method for making strip shaped graphene layer

摘要

A method for making a strip shaped graphene layer includes the following steps. First, a graphene film located on a surface of a substrate is provided. Second, a drawn carbon nanotube film composite is disposed on the graphene film. The drawn carbon nanotube film composite includes a polymer material and a drawn carbon nanotube film structure disposed in the polymer material. The drawn carbon nanotube film structure includes a number of carbon nanotube segments and a number of strip-shaped gaps between the adjacent carbon nanotube segments. Third, the polymer material is partly removed to expose the carbon nanotube segments. Fourth, the carbon nanotube segments and the graphene film covered by the plurality of carbon nanotube segments are etched. Fifth, the remained polymer material is removed to obtain the strip shaped graphene layer.

主权项

1. A method for making a strip shaped graphene layer comprising:
S1, providing a graphene film on a surface of a substrate; S2, drawing at least one carbon nanotube film comprising 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; S3, 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 carbon nanotube film; S4, applying a voltage to the carbon nanotube structure to remove a portion of the polymer material to expose the plurality of carbon nanotube segments, wherein at least the polymer material in the strip-shaped gaps are retained; S5, etching the plurality of carbon nanotube segments and the graphene film covered by the plurality of carbon nanotube segments; and S6, removing a remaining portion of the polymer material.