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KMID : 1102020170470030086
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Applied Microscopy
2017 Volume.47 No. 3 p.86 ~ p.94
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Switch-on Phenomena and Field Emission from Single-Walled Carbon Nanotubes Embedded in Glass
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Daradkeh Samer I.
Mousa Marwan S.
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Abstract
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In this study, we will describe a new design of carbon nanotubes tip. Single-walled carbon nanotubes produced using high-pressure CO over Fe particles (HiPCO) at CNI, Houston, TX used in this study. These tips were manufactured by employing a drawing technique using glass puller. Field electron microscopies with tips (cathode) to screen (Anode) separation of ~10 mm was used to characterize the electron emitters. The system was evacuated down to base pressure of (~10?8 mbar) when baked at up to (~200°C) over night. An electron field emission patterns, as well as current versus voltage characteristics and Fowler-Nordheim plots, are discussed.
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KEYWORD
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Cold field emission, Single-walled carbon nanotubes, Fowler-Nordheim plot
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