Field Emission Properties of the Nonaligned Multiwalled Carbon Nanotube Films with Different Length
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概要
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The field emission properties of the multi-walled carbon nanotubes (MWNT) with different length were studied. The results exhibit that the emission properties of these carbon nanotube films are intensively dependent on the length of carbon nanotubes and density of the film. The morphology of the different length MWNT films was investigated by scanning electron micrograph (SEM) and X-ray diffraction (XRD). Large differences of field emission characteristics among these MWNTs are observed, and explained in terms of a variation of the field enhancement factor. The longest MWNT exhibits the best field emission characteristics among all of the MWNTs studied. As a consequence, the field emission characteristics can be optimized by controlled the physical parameter of MWNT such as the tip density and the nanotube length, and the density of its film.
- Japan Society of Applied Physicsの論文
- 2005-01-10
著者
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Araki Hisashi
Department Of Electronic Engineering Faculty Of Engineering Osaka University
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Yoshino Katsumi
Department Of Electrical Engineering Faculty Of Engineering Osaka University
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Ozaki Masanori
Department Of Electrical Electronic And Informational Engineering Osaka University
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Feng Wei
Department Of Cardiovascular Surgery And Research Center For Cardiovascular Regenerative Medicine Ca
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Feng Wei
Department of Polymer Materials Science and Engineering, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
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