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Title: Low threshold field electron emission from solvothermally synthesized WO2.72 nanowires
Authors: Late, D.J.
Kashid, R.V.
Sekhar Rout, C. 
More, M.A.
Joag, D.S.
Issue Date: Mar-2010
Citation: Late, D.J., Kashid, R.V., Sekhar Rout, C., More, M.A., Joag, D.S. (2010-03). Low threshold field electron emission from solvothermally synthesized WO2.72 nanowires. Applied Physics A: Materials Science and Processing 98 (4) : 751-756. ScholarBank@NUS Repository.
Abstract: Field emission studies of WO2.72 nanowires synthesized by a solvothermal method have been performed in the planar diode configuration under ultra high vacuum conditions. Fowler-Nordheim plots obtained from the current-voltage characteristics follow the quantum mechanical tunneling process and a current density of ∼8.3×106 μA/cm2 can be drawn at an applied electric field of 2 V/μm. The field enhancement factor is 33025, while the turn-on field is only 1.4 V/μm. The emission current-time plot recorded at the pre-set value of emission current of 1 μA over a period of more than 3 h exhibits an initial increase and a subsequent stabilization of the emission current. The results reveal that the WO 2.72 nanowire emitters synthesized by the solvothermal method are promising cathode materials for practical applications. © 2009 Springer-Verlag.
Source Title: Applied Physics A: Materials Science and Processing
ISSN: 09478396
DOI: 10.1007/s00339-009-5536-0
Appears in Collections:Staff Publications

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