Transparent conducting thin film and preparation method thereof

[0045] Complete the preparation of the transparent conductive film 2 through the following specific steps:

[0046] 1) cleaning the transparent substrate 1 of the glass, and drying it with dry nitrogen after cleaning;

[0047] 2) A silver nanowire layer 21 is formed on the transparent substrate 1 by drop coating, the silver nanowire has a diameter of 40 nm and a length of 100 μm, and its density on the transparent substrate 1 is 0.005 mg / cm 2 ;

[0048] 3) adopt chemical vapor deposition (CVD) to form graphene sheet, and this graphene sheet is single-layer graphene;

[0049] 4) transfer the graphene sheet to the silver nanowire layer 21 by a dry method to form a graphene sheet 22, thereby preparing a composite layer consisting of the graphene sheet 22 and the silver nanowire layer 21 on the transparent substrate 1 transparent conductive film 2.

[0051] Complete the preparation of the transparent conductive film 2 through the following specific steps:

[0052] 1) Clean the flexible transparent substrate 1 of polyethylene terephthalate (PET), and dry it with dry nitrogen after cleaning;

[0053] 2) A silver nanowire layer 21 is formed on the transparent substrate 1 by scraping, the silver nanowire has a diameter of 60 nm and a length of 200 μm, and its density on the transparent substrate 1 is 0.0015 mg / cm 2 ;

[0054] 3) Graphene sheets are formed by graphene oxide after reduction, and the graphene sheets are double-layer graphene;

[0055] 4) Form a graphene sheet 22 on the silver nanowire layer 21 by spin coating, thereby preparing a transparent conductive film made of a combination layer of the graphene sheet 22 and the silver nanowire layer 21 on the transparent substrate 1 2.

[0057]Complete the preparation of the transparent conductive film 2 through the following specific steps:

[0058] 1) Clean the flexible transparent substrate 1 of polyethylene naphthalate (PEN), and dry it with dry nitrogen after cleaning;

[0059] 2) adopt chemical vapor deposition (CVD) to form graphene sheet, and this graphene sheet is bilayer graphene;

[0060] 3) transfer the graphene sheet to the transparent substrate 1 by a wet method to form a graphene sheet 22;

[0061] 4) A silver nanowire layer 21 is formed on the graphene sheet 22 by spraying, the silver nanowire has a diameter of 60 nm and a length of 80 μm, and its density on the transparent substrate 1 is 0.005 mg / cm 2 , so that a transparent conductive film 2 composed of a combined layer of graphene sheet layer 22 and silver nanowire layer 21 is prepared on the transparent substrate 1 .