摘要:
A protected faceplate structure (900) includes a faceplate (100) and a barrier layer (902) of silica. The faceplate (100) may be made of soda glass, and the barrier layer (902) may be made of silica.
摘要:
The light source, comprises an evacuated container having walls, including an outer glass layer (23) which on at least part thereof is coated on the inside with a layer of phosphor (24) forming a luminescent layer and a conductive layer (25) forming an anode. The phosphor (24) is excited to luminescence by electron bombardment from a field emission cathode (40) located in the interior of the container. The field emission cathode (40) comprises a carrier having a diameter in the mm range. At least a portion of the surface of the carrier is provided with a conductive layer having surface irregularities in the form of tips, having a radial extension being less than about 10 νm. Due to the geometry and the tips, the electric field is concentrated and amplified at the field emission surface.
摘要:
An electron-emitting device contains an electron focusing system (37 or 37A) formed with a base focusing structure (38 or 38A) and a focus coating (39 or 39A) that penetrates, preferably only pathway, into a focus opening (40) extending through the base focusing structure. The focus coating, normally of lower resistivity than the base focusing structure, is typically formed by an angled deposition technique. An access conductor (106 or 106A) is preferably electrically coupled to the lower surface of the focus coating. A potential for controlling the focusing of electrons that travel through the focus opening is provided to the focus coating via the access conductor.
摘要:
The present invention provides a field emission device and a method of manufacturing the same. The device comprises a plane substrate (1), a cathode electrode (2) provided on the plane substrate and formed with emission projections (3) extending generally parallel to the surface of the plane substrate, and a gate electrode (4) provided on the plane substrate for controlling the electron emission by the emission projections. The emission projections at least of the cathode electrode are formed on an insulation layer (6) on the surface of the plane substrate such that the tips of the emission projections are positioned vertically above the level of the gate electrode, which enhances the performance of the device.
摘要:
Disclosed are an electron emitting device using graphene and a method for manufacturing the same. The electron emitting device includes a metal holder having at least one slot, at least one emitter plate inserted into the slot to protrude from a first surface of the metal holder, and including an emitter supporting member and a graphene emitter attached onto the emitter supporting member, an insulation layer provided on the first surface of the metal holder, and a gate electrode provided on the insulation layer and including a gate supporting member and a graphene gate attached onto the gate supporting member.
摘要:
The present invention relates to a solid state cooling/power generating device is provided comprising a first and second electrode separated by a vacuum gap. According to the present invention at least one of the electrodes is provided with a nanoscaled semiconductor heterostructure (301), which comprises at least one quantum well which in combination with the vacuum gap (315) forms a double barrier resonance structure providing conditions which allows resonant tunneling between the first and second electrode.
摘要:
This field electron emission device comprises a linear conductor wire having concave/convex on its surface and an electron emitter having electron conductivity formed on the concave/convex surface of the conductor wire. Preferably, the concave/convex is formed by a channeling performed to the surface of the conductor wire. Preferably, the electron emitter is composed of microscopic linear materials composed of selected one or combination of carbon nano-tube, carbon nano-wall, carbon fiber, graphite fiber, amorphous carbon fiber and diamond fiber.
摘要:
The invention relates to the field of electronics, and in particular to the creation of autoemission cathodes. Cold cathodes are intended for use as an electrode source in various electrovacuum devices. One direction in the development of cold cathodes is research into the possibilities of using different materials for their manufacture. These include a hydrocarbon material based on linear-chain sp 1 carbon. Carbon fibre or carbon film based on linear chain sp 1 carbon, including film formed by applying a suspension of carbon powder to a substrate, can be used as the carbon material. The substrate may be made flexible. In addition, a cathode may be made from carbon film formed by deposition from a carbon plasma. The method for producing carbon fibres comprises performing the reaction of dehydrohalogenation of polymeric fibres made from polyvinylidenehalides or polyvinyhalides with subsequent heat treatment at a temperature of from 400 to 900 C in a vacuum of roughly 10 -4 Pa. Both electronic instruments and also light sources may be manufactured using the cold cathodes now proposed.