A method of thinning carbon nanotube film
A carbon nanotube film and carbon nanotube technology are applied in the direction of carbon-silicon compound conductors, conductive layers on insulating carriers, electrical components, etc., and can solve the problems that carbon nanotube films are difficult to obtain and limit the application of carbon nanotube films. To achieve the effect of improving transparency
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Embodiment 1
[0031] This embodiment provides a method for thinning carbon nanotube films, including:
[0032] 1) if Figure 1a As shown, a 100nm-thick carbon nanotube film grown by floating catalytic chemical vapor deposition (hereinafter referred to as the "carbon nanotube primary film") was spread on a flat substrate (polished silicon wafer) with a smooth surface , due to the excellent self-adsorption properties of the carbon nanotube film, the carbon nanotube film cannot be laid on the substrate very flatly, and wrinkles will be formed on the substrate (such as figure 2 As shown in a), in order to eliminate wrinkles, put the flat substrate and the carbon nanotube primary film on the surface together in the evaporating dish, and then inject ethanol into the evaporating dish, so that the ethanol liquid level is basically equal to the surface of the carbon nanotube primary film or Less than 0.5mm above the surface of the primary membrane (such as figure 2 As shown in b), the capillary ...
Embodiment 2
[0046] This embodiment provides another method for thinning carbon nanotube films, including:
[0047] 1) Spread the 100nm-thick carbon nanotube primary film grown by floating catalytic chemical vapor deposition on a flat substrate (polished silicon wafer) with a smooth surface;
[0048] 2) Use scotch tape as the first transfer substrate, cover the adhesive layer of the scotch tape on the carbon nanotube primary film, and then separate the scotch tape from the flat substrate, because the surface energy of the scotch tape is much larger than that of silicon sheet, so the carbon nanotube primary film can be easily transferred from the silicon sheet to the scotch tape (first transfer substrate);
[0049] 3) Take another piece of scotch tape that is the same as the first transfer substrate as the second transfer substrate, and cover the second transfer substrate on the side of the first transfer substrate on which the carbon nanotube primary film is printed;
[0050] 4) Separate ...
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Abstract
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