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A theoretical model for one-dimensional CuO nanowire was established considering transport mechanisms induced by different defect concentration. By using a one-dimensional heat equation, the emission current was calculated by considering the temperature induced by the emission current. The maximum emission current density and maximum applied field was studied considering different electrical properties...
We prepared large-area patterned tungsten oxide nanowire arrays on glass substrate by thermal oxidation method. The as-synthesized tungsten oxide nanowires have high aspect ratio up to 150. Field emission measurement shows that the tungsten oxide nanowire arrays have excellent field emission properties and good emission uniformity with a turn-on field of 6.3 V/µm.
Large-area patterned boron carbide nanowires (B4C NWs) have been synthesized using chemical vapor deposition (CVD). The average diameter of B4C NWs is about 50 nm, with a mean length of 20 μm. The B4C NWs have a single-crystal structure and conductivities around 5.1 × 10−2 Ω−1·cm−1. Field emission measurements of patterned B4C NWs films show that their turn-on electric field is 2.7 V/μm, lower than...
Iron films with different thickness were prepared on glass substrate by DC magnetron sputtering. Arrays of α-Fe2O3 nanowires and nanosheets were grown on iron films by thermal oxidation. The morphology and structure of the prepared α-Fe2O3 nanostructures were characterized by SEM, XRD, XPS, Raman and HRTEM. Field emission properties including I-V characteristics, emission uniformity and stability...
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