A kind of stable doping method of graphene
A graphene and graphene surface technology, which is applied in the field of stably improving the electrical properties of graphene films, can solve the problems of disappearing, affecting the stability of the square resistance, and reducing the doping effect, so as to improve stability, improve time stability, and improve quality effect
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Embodiment 1
[0043] Such as figure 1 The graphene stable doping structure of the shown dopant between the substrate and graphene, the process is as follows Figure 8 As shown, the specific steps are as follows:
[0044] 1.1) Graphene is grown on the copper foil by CVD, and then the temporary substrate is pasted on the graphene;
[0045] 1.2) Put the copper foil into the etching solution, etch the copper foil to obtain a temporary substrate / graphene sample, and then put the graphene surface of the sample into the doping solution for doping, Then bond one side of the doped graphene to the substrate, then remove the temporary substrate to obtain a sample sheet with a dopant on the graphene surface, and finally obtain the substrate, dopant and graphene from bottom to top. sequential dailies; or,
[0046] Put the copper foil / graphene into the mixed solution composed of etching solution and doping solution, etch and dope at the same time, then attach the doped graphene side to the substrate, ...
Embodiment 2
[0048] Such as figure 2 The stable doping structure of the shown dopant between the graphene and the graphene layer, the process is as follows Figure 9 As shown, the specific steps are as follows:
[0049] Step 1) Graphene is grown on the copper foil by CVD, and then the temporary substrate is pasted on the graphene;
[0050] Step 2) Put the copper foil into an etching solution, etch, wash and dry the copper foil to obtain a temporary substrate / graphene layer sample, and connect the graphene side of the sample to the substrate Bonding, and then remove the temporary substrate, then put the graphene surface into the doping solution for doping, after washing and drying, a sample with dopant on the graphene surface is obtained;
[0051] Step 3) the sample sheet that is provided with dopant on the graphene surface is pasted on the sample sheet of another temporary substrate / graphene layer, and then removes described temporary substrate, obtains successively from bottom to top as ...
Embodiment 3
[0053] Such as image 3 The double-layer stable doping structure of the shown dopant between the substrate and graphene, graphene and graphene, the process is as follows Figure 8 , Figure 9 As shown, the specific steps are as follows:
[0054] The step of wrapping dopant reagent molecules between graphene and graphene is specifically as follows:
[0055] Step 1) Graphene is grown on the copper foil by CVD, and then the temporary substrate is pasted on the graphene;
[0056] Step 2) Put the copper foil into an etching solution, etch, wash and dry the copper foil to obtain a temporary substrate / graphene layer sample, and connect the graphene side of the sample to the substrate Bonding, and then remove the temporary substrate, then put the graphene surface into the doping solution for doping, after washing and drying, a sample with dopant on the graphene surface is obtained;
[0057] Step 3) the sample sheet that is provided with dopant on the graphene surface is pasted on ...
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