Synthesis and Field Emission Characterization of Titanium Nitride Nanowires
Abstract:Single crystalline titanium nitride nanowires have been successfully synthesized through a chloride-assisted carbon thermal reduction method using the active carbon, TiO2 and NaCl powders as precursors and cobalt nanoparticles as catalyst. The products were characterized by X-ray diffraction, electron microscopy, and energy-dispersive X-ray spectroscopy. The TiN nanowires possess a cubic structure with typical diameter of 20–60 nm and length up to microns. The field emission property of the TiN nanowires has been characterized for the first time, which follows the conventional Fowler-Nordheim behavior and shows the low turn-on field of 7.1 V m−1 and good emission stability, indicating the potential applications. The formation mechanism of the TiN nanowires has also been discussed.
Document Type: Short Communication
Publication date: August 1, 2007
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