STABLE GRAPHENE FILM AND PREPARING METHOD OF THE SAME
The present disclosure relates to a stable graphene film, a preparing method of the stable graphene film, a graphene transparent electrode including the stable graphene film, and a touch screen including the stable graphene film.
1 . A stable graphene film, comprising a graphene film, and an insulating or conductive protection film formed on the graphene film.
2 . The stable graphene film of claim 1 ,
wherein the protection film contains an insulating or conductive polymer, or an insulating or conductive inorganic material.
3 . The stable graphene film of claim 1 , further comprising an intermediate layer containing a conductive polymer or a conductive inorganic material between the protection film and the graphene film.
4 . The stable graphene film of claim 3 , further comprising a graphene layer between the protection film and the intermediate layer.
5 . The stable graphene film of claim 1 ,
wherein the protection film has thickness of about 100 nm or less.
6 . The stable graphene film of claim 2 ,
wherein the insulating polymer comprises a curable insulating polymer.
7 - 12 . (canceled)
13 . The stable graphene film of claim 1 ,
wherein the graphene film is doped.
14 - 19 . (canceled)
20 . The stable graphene film of claim 1 , further comprising an adhesive layer containing an insulating or a conductive polymer between the substrate and the graphene film.
21 - 24 . (canceled)
25 . A graphene transparent electrode comprising the stable graphene film of claim 1 .
26 . A tough screen comprising the graphene transparent electrode of claim 25 .
27 . A method for preparing a stable graphene film, comprising forming an insulating or a conductive protection film on the graphene film.
28 . The method for preparing a stable graphene film of claim 27 , comprising:
forming the graphene film on a substrate; and
forming the protection film containing an insulating or conductive polymer, or an insulating or conductive inorganic material on a top portion of the graphene film.
29 . The method for preparing a stable graphene film of claim 28 , further comprising forming an intermediate layer containing a conductive polymer or a conductive inorganic material between the protection film and the graphene film.
30 . The method for preparing a stable graphene film of claim 29 , further comprising forming a graphene film between the protection film and the intermediate layer.
31 . The method for preparing a stable graphene film of claim 27 ,
wherein the protection film is a thin film having thickness of about 100 nm or less.
32 - 33 . (canceled)
34 . The method for preparing a stable graphene film of claim 28 , further including forming an adhesive layer containing an insulating or conductive polymer between the substrate and the graphene film.
35 . The method for preparing a stable graphene film of claim 27 , further including doping the graphene film prior to forming the protection film.
36 - 38 . (canceled)
39 . The method for preparing a stable graphene film of claim 27 ,
wherein forming the protection film is performed by processes comprising bar-coating, wire bar-coating, spin coating, dip coating, casting, micro gravure coating, gravure coating, roll coating, immersion coating, spray coating, screen printing, flexo printing, offset printing, or inkjet printing.
40 . The method for preparing a stable graphene film of claim 27 ,
wherein forming the protection film containing the insulating or conductive inorganic material or the intermediate layer containing the insulating or conductive inorganic material is performed by processes comprising a vacuum deposition method.