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| Title
| - Synthesis and Atmospheric Pressure Field Emission Operation of W18O49 Nanorods
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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.
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| Alternative Title
| - Field Emission from Tungsten Oxide Nanorods
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