Method for electrophoretic anode deposition preparation of carbon nanotube field-emission film
A carbon nanotube film, electrophoretic deposition method, applied in the field of nanomaterial application research, can solve the problems affecting the field emission performance of the carbon nanotube film, weak bonding force between the carbon nanotube film and the substrate, etc., and achieves low turn-on voltage, high Effect of Field Emission Current Density
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[0012] The invention provides an electrophoretic anode deposition preparation method of a carbon nanotube field emission film. The process steps of the present invention will be described below with reference to the drawings. As shown in Figure 1,
[0013] (1) First, the original carbon nanotube powder grown by the CVD method, 0.1 g of multi-walled carbon nanotubes with a length of about 0.1-50 μm and a diameter of 10-20 nm, is mixed with 0.5 g of surfactant, and added to 100 mL of deionized water. The ultrasonic power is about 100-500W for ultrasonic dispersion for 1 to 2 hours to form a very uniform carbon nanotube dispersion liquid. Experiments have observed that the carbon nanotube dispersion liquid obtained by ultrasonic can be maintained for more than half a year without coagulation.
[0014] (2) Use the electrophoretic deposition method to deposit the dispersed carbon nanotubes on the surface of the stainless steel or titanium anode. The schematic diagram of the electrophor...
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