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

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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.

Keywords: EMISSION PROPERTY; RAMAN SPECTROSCOPY; ULTRANANOCRYSTALLINE DIAMOND

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2008.AN49

Publication date: August 1, 2008

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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