Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 157 for “"Field emission"”.
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Field emission from silicon
A field emitter serves as a cold source of electrons. It has practical applications in various fields such as field emission flat panel displays, multiple electron-beam lithography, ion propulsion/micro-thrusters, radio frequency source, information storage technology, and electronic cooling. …
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Intelligent field emission arrays
Field emission arrays (FEAs) have been studied extensively as potential electron sources for a number of vacuum microelectronic device applications. For most applications, temporal current stability and spatial current uniformity are major concerns. Using the kinetic model of electron emission, …
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Silicon field emission pressure sensor
… advantages of using vacuum as device medium and field emission cathode as electron source, a renewed interest in vacuum microelectronics utilizing advanced IC technology is emerging. This thesis demonstrates an application of field emission emitters in two novel pressure sensors. One is based on …
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Xray Generation by Field Emission
… thermionic devices with those that incorporate Field Emission electron sources. One of the most important attributes of Field Emission X-ray sources is their controllability, and in particular the fast response time, which opens the door to applying techniques which have formerly been the …
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Field emission from organic materials
Field emission displays (FEDs) show great promise as high performance flat panel displays. The light emission process is efficient, long lifetimes are possible with high brightness, and bright passive matrix displays can be built. Because passive matrix displays don't need a transistor backplane, …
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Double-gated field emission arrays
… fabricates and characterizes double-gated field emission devices with high aspect ratio. One of the gates extracts the electrons while the second gate focuses the electrons into small spots. High aspect ratio silicon field emitters were defined by reactive ion etching of silicon followed by …
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Field emission in micro vacuum devices
Sviðsröfun (e. field emission) liggur til grundvallar björtum rafeindageislum, en þeir eru nauðsynlegir í hvers konar hátækniferlum til dæmis örrásaframleiðslu, smásjártækni og við framköllun aflmikilla örbylgjugeisla. Sviðsröfun byggir á því að utanaðkomandi rafsvið aflagar yfirborðsmætti milli …
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Ordered Nanomaterials for Electron Field Emission
In the quest for reliable, repeatable and stable field electron emission that has commercial potential, whilst many attempts have been made, none yet has been truly distinguishable as being successful. Whilst I do not claim within this thesis to have uncovered the secret to success, fundamental …
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Field Emission Based Sensors Using Carbon Nanotubes
… of better cold cathodes that employ the electron field emission process. Among the many kinds of field emitters that could be tried, carbon nanotubes (CNT) have a number of distinct advantages because of their unique geometrical structure, chemical inertness, mechanical stiffness, and high thermal …
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Radiation modelling of vacuum field emission devices
… techniques have enabled modern vacuum field emission devices (VacFEDs) and have been demonstrated in the laboratory for use as diodes and transistors. Modern VacFEDs operate through cold emission of electrons across a vacuum gap. It has been proposed that these devices are "radiation …
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Device modelling of a field emission displays
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
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Vertically integrated transistors for field emission applications
Field emission devices have demonstrated several research and commercial applications in the areas of flat panel displays, microwave power devices, imaging sensors and electron sources. Recent work has shown the feasibility of using integrated MOSFETs to control and enhance field emission stability …
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Field emission from a multiple emitter composite cathode.
Massachusetts Institute of Technology. Dept. of Physics. Thesis. 1965. B.S.
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Feature scaling of large, ballasted, field emission arrays
Field emitters are an exciting technology for high-frequency, high-power applications because of their excellent free space electron transport, and their potential for high current density and high current, especially when they are used in an array format. However, a major challenge preventing the …
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Numerical analysis and design strategy for field emission devices
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
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Field emission of ZnO nano-structures produced by laser ablation
… deposition of ZnO materials for applications as field electron emission sources. The results from the work are concerned with the study of the important physical processes present in a laser ablation zinc oxide plasma plume expanding into vacuum and various ambient gas pressures. The thesis also …
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Particle modeling of non-equilibrium field emission driven RF microplasmas
… are on the order of kilovolts. When the electric field at the electrodes reaches GV/m or tens of GV/m either due to reduced interelectrode spacing and surface irregularities or due to carefully designed nanostructures on the electrodes, quantum processes such as field emission and field ionization …
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