A kind of carbon nanotube growth method and its emitter for the growth of boat groove pattern structure
A carbon nanotube and growth method technology, applied in the field of electron sources, can solve the problems of difficult emission current, small total emission current, limited application, etc., and achieve the effect of improving field emission current
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[0032] In an embodiment, the preparation process of carbon nanotubes grown with a new patterned structure in a boat trough is as follows:
[0033] (1) First select the substrate material. Here, molybdenum sheet is selected as the substrate. Silicon sheet, stainless steel, ITO conductive glass or quartz sheet can also be used. There is no significant difference in the obtained samples. The base sheet was ultrasonically cleaned with dilute acid, acetone, ethanol and secondary water for 30 minutes to remove organic matter and other impurities on the surface, and to remove surface moisture under a nitrogen atmosphere; the dilute acid was 1mol / L dilute hydrochloric acid, 1mol / L / L dilute nitric acid, 0.5mol / L dilute sulfuric acid or some 0.1mol / L weak acid (such as acetic acid, etc.).
[0034] (2) Select a 0.1mm thick stainless steel material to prepare a pattern template with a boat groove pattern structure by laser cutting technology or electron beam technology, and the pattern c...
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