Abstract:
Summary form only given, as follows. Microhollow electrode discharges, discharges between thin metal foils with submillimeter gap and submillimeter holes in cathode and a...Show MoreMetadata
Abstract:
Summary form only given, as follows. Microhollow electrode discharges, discharges between thin metal foils with submillimeter gap and submillimeter holes in cathode and anode, show three distinct modes of operation; (a) at low currents the predischarge mode, a glow discharge between the outer faces of the hollow electrodes, (b) at higher current a phase with increased ionization due to "pendulum" electrons in the cathode hole, and (c) at even higher current an abnormal glow discharge between the edges of cathode and anode hole. A fourth discharge mode, the so-called partial discharge seems to occur at high gas pressure at pressure times hole diameter values exceeding 10 Torr cm. Experiments in a 0.2 mm diameter hollow electrode geometry with Xe and Ar at atmospheric pressure have shown that the discharges emit excimer radiation. Control of these discharges which have a sustaining voltage of several hundred volts allows their use in flat panel displays. A second mode of operation which allows us to form addressable flat panel displays is the predischarge mode. It could be shown that with a third electrode close to the cathode, but outside the anode-cathode gap, the intensity of the discharge could be linearly varied by varying the voltage at the third electrode in a range below 100 V. The predischarges have a resistive behavior (positive slope of current-voltage characteristics) which allows us to place them in parallel without individual ballast and without segmentation of anode and cathode. This has been demonstrated in a small device with nine addressable microhollow cathode discharges.
Published in: IEEE Conference Record - Abstracts. 1997 IEEE International Conference on Plasma Science
Date of Conference: 19-22 May 1997
Date Added to IEEE Xplore: 06 August 2002
Print ISBN:0-7803-3990-8
Print ISSN: 0730-9244