Carbon nano tube/carbon nitride nano tube with nano junction and preparation and use

Abstract

A carbon nano -nanotuba with nano -knot / carbonide nano -nanotubes, half of the direction of the axis of the tube is composed of carbon elements, and the other half is a carbon nanoma; the carbon nanotuba part is a straight pipe structure, doped nitrogen, doped nitrogenSome have bamboo -like structures; their diameter is 10 to 100 nanometers, and the length is 5 to 400 microns; its electrical performance is a non -linear rectification effect.The preparation method is to pass the hydrogen or ammonia in the heating furnace, and the metal cymbals are decomposed in areas of 500 to 600 ° C. The growth temperature is 800 to 1200 ° C, the hydrogen or ammonia atmosphere is under the atmosphere of hydrogen or ammonia.The atmosphere, connect to another gas ammonia or hydrogen. After the constant temperature for 1 to 60 minutes, stop heating and continue to cool the hydrogen to cause cold; the hydrogen flow is greater than 0 ml-500 ml / minute; the ammonia gas is 0 to 500 ml / minute.The nanopot can be used as a constructing nano -device.

Description

technical field [0001] The invention relates to a nano device, in particular to a carbon nanotube / carbon nitride nanotube with a nano junction. [0002] The present invention also relates to a method for preparing the aforementioned nanotubes. [0003] The present invention also relates to the application of the above-mentioned nanotubes in the construction of nanodevices. Background technique [0004] With the continuous miniaturization of devices, nanoelectronic devices will replace microelectronic devices, and human society will gradually enter the era of nanometer devices. Like microelectronics, nanodevices are expected to use various nanojunctions as structural units, and the controllable preparation of various nanojunctions is a prerequisite for the realization of nanodevices. The fabrication of nanojunctions is a current research hotspot. Due to its unique electrical and mechanical properties, carbon nanotubes are potential nano-device materials. Theoretical and e...

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Problems solved by technology

Currently, it is possible to control the growth of carbon nanotubes with nanojunctions of various bifurcated structures (Satishkumar, B.C.; Thomas, P.J.; Govindaraj, A; Rao, N.R. Appl. Phys. Lett., 2000, 77, 2530), and The preparation of linear carbon nitride nanotubes / carbon nanotube nanojunctions by microwave chemical vapor deposition has been reported (Ma, X.C.; Wang, E.G.Appl.Phys.Lett.2001, 78, 978), but there is no use of phthalocyanine derivatives. Controlled growth of linear nanotubes with nanojunctions as catalysts and carbon sources and report on the electrical properties of the nanojunctions

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