摘要:
The present disclosure provides a method for making carbon nanotube slurry. The method includes the following steps. First, a carbon nanotube array is provided on a substrate, the carbon nanotube array comprises a number of carbon nanotubes. Second, the carbon nanotube array is trimmed by a laser to obtain a trimmed carbon nanotube array comprising a plurality of trimmed carbon nanotubes having uniform lengths. Third, the trimmed carbon nanotube array is removed from the substrate to obtain the trimmed carbon nanotubes. Fourth, the trimmed carbon nanotubes are mixed with an inorganic binder and an organic carrier to obtain the carbon nanotube slurry.
摘要:
A method for making carbon nanotube slurry is presented. At least one carbon nanotube film is provided, the at least one carbon nanotube film includes a plurality of carbon nanotubes oriented along substantially the same direction. A substrate is provided, and the at least one carbon nanotube film is attached to a surface of the substrate. The at least one carbon nanotube film is cut perpendicular the oriented direction of the carbon nanotubes with a laser to form a carbon nanotube belt. An inorganic binder and an organic carrier is provided, the carbon nanotube belt, the inorganic binder, and the organic carrier are mixed in an organic solvent to form a mixture. The organic solvent is removed.
摘要:
A method for making a field emission device includes the following steps. An insulative substrate is provided. An electron pulling electrode is formed on the insulative substrate. A secondary electron emission layer is formed on the electron pulling electrode. A first dielectric layer is fabricated. The first dielectric layer has a second opening to expose the secondary electron emission layer. A cathode plate having an electron output portion is provided. An electron emission layer is formed on part surface of the cathode plate. The cathode plate is placed on the first dielectric layer. The electron output portion and the second opening have at least one part overlapped, and at least one part of the electron emission layer is oriented to the secondary electron emission layer via the second opening.
摘要:
A field emission device includes an insulative substrate, an electron pulling electrode, a secondary electron emission layer, a first dielectric layer, a cathode electrode, and an electron emission layer. The electron pulling electrode is located on a surface of the insulative substrate. The secondary electron emission layer is located on a surface of the electron pulling electrode. The cathode electrode is located apart from the electron pulling electrode by the first dielectric layer. The cathode electrode has a surface oriented to the electron pulling electrode and defines a first opening as an electron output portion. The electron emission layer is located on the surface of the cathode electrode and oriented to the electron pulling electrode.
摘要:
A chromatic element includes a sealed enclosure, an isolation layer, a first heating element, a chromatic material layer and a second heating element. The isolation layer is disposed in the sealed enclosure and separates the sealed enclosure into a first chamber and a second chamber. The first heating element is configured to heat the first chamber. The second heating element is configured to heat the second chamber. The chromatic material layer is disposed in one of the first chamber and the second chamber. The chromatic material layer transfers from the first chamber to the second chamber in a gaseous state.
摘要:
A method for forming a tip for a carbon nanotube wire is introduced. The method includes the following steps. A carbon nanotube wire is provided. A laser beam irradiates the carbon nanotube wire until the carbon nanotube wire is broken off such that the carbon nanotube wire forms a taper-shaped tip. A scan power of the laser beam is in a range from about 1 watt to about 10 watts. A scan speed of the laser beam is equal to or less than 200 millimeters per second.
摘要:
The present disclosure provides a field emission device. The field emission device includes an insulating substrate having a first surface, a first electrode, a second electrode, at least one cathode emitter and a secondary electron emitter. The first electrode and the second electrode are spaced from each other and are located on the first surface of the insulating substrate. The cathode emitter is electrically connected to the first electrode and spaced from the second electrode. A secondary electron emitter is spaced from the cathode emitter. The secondary electron emitter has an electron emitting surface exposed to the cathode emitter. A secondary electron emitter is spaced from the cathode emitter. The cathode emitter is oriented toward the secondary electron emitter.
摘要:
A field emission device includes a cathode, an anode, an emitter, a first adjusting electrode, and a second adjusting electrode. The emitter electrically connects to the cathode. The cathode, the first adjusting electrode, and the second adjusting electrode electrically connect to an electrode down-lead. The anode electrically connects another electrode down-lead. The cathode is disposed between the first adjusting electrode and the second adjusting electrode.
摘要:
An ion source using a field emission device is provided. The field emission device includes an insulative substrate, an electron pulling electrode, a secondary electron emission layer, a first dielectric layer, a cathode electrode, and an electron emission layer. The electron pulling electrode is located on a surface of the insulative substrate. The secondary electron emission layer is located on a surface of the electron pulling electrode. The cathode electrode is located apart from the electron pulling electrode by the first dielectric layer. The cathode electrode has a surface oriented to the electron pulling electrode and defines a first opening as an electron output portion. The electron emission layer is located on the surface of the cathode electrode and oriented to the electron pulling electrode.
摘要:
A thermochromatic device includes an insulating substrate, a color element, a heating element, a first electrode, and a second electrode. The color element is located on the insulating substrate and includes a reversible thermochromatic material. The heating element is located adjacent to the color element and includes a carbon nanotube structure. The first electrode and the second electrode are electrically connected to the heating element. A thermochromatic display apparatus using the thermochromatic device is also related.