Synthesis and atmospheric pressure field emission operation of W18O49 nanowires

A. Agiral; Johannes G.E. Gardeniers

doi:10.1021/jp802756y

Synthesis and atmospheric pressure field emission operation of W18O49 nanowires

A. Agiral, Johannes G.E. Gardeniers

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

Tungsten oxide W18O49 nanorods with diameters of 15−20 nm were grown on tungsten thin films exposed to ethene and nitrogen at 700 °C at atmospheric pressure. It was found that tungsten carbide formation enhances nucleation and growth of nanorods. Atmospheric pressure field emission measurements in air showed a turn-on field of 3.3 V/μm and stable and reproducible emission current density (28 mA/cm2). At low current densities (<20 mA/cm2), the field emission current follows the Fowler−Nordheim model; saturation effects were observed above 20 mA/cm2.

Original language	Undefined
Pages (from-to)	15183-15189
Number of pages	7
Journal	The Journal of physical chemistry C
Volume	112
Issue number	39
DOIs	https://doi.org/10.1021/jp802756y
Publication status	Published - 2008

Keywords

IR-94262
METIS-249751

Access to Document

10.1021/jp802756y

Cite this

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title = "Synthesis and atmospheric pressure field emission operation of W18O49 nanowires",

abstract = "Tungsten oxide W18O49 nanorods with diameters of 15−20 nm were grown on tungsten thin films exposed to ethene and nitrogen at 700 °C at atmospheric pressure. It was found that tungsten carbide formation enhances nucleation and growth of nanorods. Atmospheric pressure field emission measurements in air showed a turn-on field of 3.3 V/μm and stable and reproducible emission current density (28 mA/cm2). At low current densities (<20 mA/cm2), the field emission current follows the Fowler−Nordheim model; saturation effects were observed above 20 mA/cm2.",

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AU - Agiral, A.

AU - Gardeniers, Johannes G.E.

PY - 2008

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N2 - Tungsten oxide W18O49 nanorods with diameters of 15−20 nm were grown on tungsten thin films exposed to ethene and nitrogen at 700 °C at atmospheric pressure. It was found that tungsten carbide formation enhances nucleation and growth of nanorods. Atmospheric pressure field emission measurements in air showed a turn-on field of 3.3 V/μm and stable and reproducible emission current density (28 mA/cm2). At low current densities (<20 mA/cm2), the field emission current follows the Fowler−Nordheim model; saturation effects were observed above 20 mA/cm2.

AB - Tungsten oxide W18O49 nanorods with diameters of 15−20 nm were grown on tungsten thin films exposed to ethene and nitrogen at 700 °C at atmospheric pressure. It was found that tungsten carbide formation enhances nucleation and growth of nanorods. Atmospheric pressure field emission measurements in air showed a turn-on field of 3.3 V/μm and stable and reproducible emission current density (28 mA/cm2). At low current densities (<20 mA/cm2), the field emission current follows the Fowler−Nordheim model; saturation effects were observed above 20 mA/cm2.

KW - IR-94262

KW - METIS-249751

U2 - 10.1021/jp802756y

DO - 10.1021/jp802756y

M3 - Article

SN - 1932-7447

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EP - 15189

JO - The Journal of physical chemistry C

JF - The Journal of physical chemistry C

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