Novel Method of Growing Ultrananocrystalline Diamond Tips and Their Field Emission Property Study
Authors: Joseph, P. T.; Chen, Li-Ju; Tai, Nyan-Hwa; Palnitkar, Umesh; Cheng, Hsiu-Fung; Lin, I-Nan
Source: Journal of Nanoscience and Nanotechnology, Volume 8, Number 8, August 2008 , pp. 4198-4201(4)
Publisher: American Scientific Publishers
Abstract:Different forms of diamond have been shown to have qualities as field emission sources. As a consequence, much effort has been focused on both the synthesis of diamond nanostructures to increase the field enhancement factor and understanding the emission mechanism in these nominally insulating materials. In our recent study, we have grown ultrananocrystalline diamond (UNCD) coated nanocrystalline diamond (NCD) tips on NCD films for field emitters. The films were characterized using field emission scanning electron microscopy and Raman spectroscopy to identify the quality of the films. The fabricated different sizes of pyramid tips and their field emission properties are reported. It has been observed that with increase in tip size, the turn on voltage also increases.
Document Type: Research Article
Publication date: August 1, 2008
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