Research on the preparation of amorphous diamond nanorod arrays and their excellent field emitting p

来源 :Science in China(Series E:Technological Sciences) | 被引量 : 0次 | 上传用户:talentcheng
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Amorphous diamond nanorod arrays with excellent field emitting have been fabricated firstly on the AAO template by the filtered cathodic arc plasma technique. Mi- croscopic analysis has displayed that the nanorods are very uniformly distributed, and the density is very high up to ~109 cm?2. The nanorod arrays are found to have an extremely low turn-on field of 0.16 V/μm, which is lower than other reported materials, and a high- emission current density of 180 mA/cm2 under an applied field of 2 V/μm can also be ob- tained. Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and filed emitting tester are employed to characterize the nanorod arrays. The field emission mechanism of the nanorod arrays is also discussed. Amorphous diamond nanorod arrays with excellent field emission have been fabricated first on the AAO template by the filtered cathodic arc plasma technique. Mi- croscopic analysis has displayed that the nanorods are very uniformly distributed, and the density is very high up ~ 109 cm? 2. The nanorod arrays are found to have an extremely low turn-on field of 0.16 V / μm, which is lower than other reported materials, and a high emission current density of 180 mA / cm2 under an applied field of 2 V / Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and filed emitting tester are employed to characterize the nanorod arrays. The field emission mechanism of the nanorod arrays is also discussed.
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