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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/26329

Title: Local probing of the enhanced field electron emission of vertically aligned nitrogen-doped diamond nanorods and their plasma illumination properties
Authors: Deshmukh, S.
Kamatchi Jothiramalingam, Sankaran
Srinivasu, K.
Korneychuk, S.
Banerjee, D.
Barman, A.
Bhattacharya, G.
Phase, D. M.
Gupta, M.
Verbeeck, J.
Leou, K. C.
Lin, I. N.
Haenen, Ken
Roy, Susanta S.
Issue Date: 2018
Citation: DIAMOND AND RELATED MATERIALS, 83, p. 118-125
Abstract: A detailed conductive atomic force microscopic investigation is carried out to directly image the electron emission behavior for nitrogen-doped diamond nanorods (N-DNRs). Localized emission measurements illustrate uniform distribution of high-density electron emission sites from N-DNRs. Emission sites coupled to nano graphitic phases at the grain boundaries facilitate electron transport and thereby enhance field electron emission from N-DNRs, resulting in a device operation at low turn-on fields of 6.23 V/mu m, a high current density of 1.94 mA/cm(2) (at an applied field of 11.8 V/mu m) and a large field enhancement factor of 3320 with a long lifetime stability of 980 min. Moreover, using N-DNRs as cathodes, a microplasma device that can ignite a plasma at a low threshold field of 390 V/mm achieving a high plasma illumination current density of 3.95 mA/cm2 at an applied voltage of 550 V and a plasma life-time stability for a duration of 433 min was demonstrated.
Notes: Roy, SS (reprint author), Shiv Nadar Univ, Sch Nat Sci, Dept Phys, NH-91, Gautam Buddha Nagar 201314, Uttar Pradesh, India. Haenen, K (reprint author), Hasselt Univ, Inst Mat Res IMO, Diepenbeek, Belgium. ken.haenen@uhasselt.be; susanta.roy@snu.edu.in
URI: http://hdl.handle.net/1942/26329
DOI: 10.1016/j.diamond.2018.02.005
ISI #: 000430767200017
ISSN: 0925-9635
Category: A1
Type: Journal Contribution
Appears in Collections: Research publications

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