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Generation of microdischarges in diamond substrates

Mitea, S.; Zelznik, M.; Bowden, M. D.; May, P. W.; Fox, N. A.; Hart, J. N.; Fowler, C.; Stevens , R. and Braithwaite, N. StJ. (2012). Generation of microdischarges in diamond substrates. Plasma Sources Science and Technology, 21(2), article no. 022001.

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We report the generation of microdischarges in devices composed of microcrystalline diamond. Discharges were generated in device structures with microhollow cathode discharge geometries. One structure consisted of an insulating diamond wafer coated with boron-doped diamond layers on both sides. A second structure consisted of an insulating diamond wafer coated with metal layers on both sides. In each case, a single sub-millimetre hole was machined through the conductor–insulator–conductor structure. The discharges were generated in a helium atmosphere. Breakdown voltages were around 500 V and discharge currents in the range 0.1–2.5 mA were maintained by a sustaining dc voltage of 300 V.

Item Type: Journal Article
Copyright Holders: 2012 IOP Publishing Ltd
ISSN: 1361-6595
Project Funding Details:
Funded Project NameProject IDFunding Body
Not SetNot SetEPSRC (Engineering and Physical Sciences Research Council)
Extra Information: Special Section: The 9th Workshop on Frontiers in Low Temperature Plasma Diagnostics
Keywords: micro-discharges; diamond; atmospheric pressure; plasma
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
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Item ID: 33652
Depositing User: N St.J Braithwaite
Date Deposited: 11 May 2012 09:39
Last Modified: 24 Nov 2014 11:28
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