超分子碳结构的场发射研究

Technical Digest of the 17th International Vacuum Nanoelectronics Conference (IEEE Cat. No.04TH8737) Pub Date : 2004-07-11 DOI:10.1109/IVNC.2004.1354966

G. Fursey, V. I. Petrick, D. Novikov, A. V. Kotcheryzhenkov, A.N. Krosovskii

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引用次数: 0

摘要

研究了用天然石墨冷破坏法制备的碳纳米团簇(主要是开口纳米管)的场发射特性。本研究采用的样品是在钨电极上涂覆n -甲基吡洛酮碳纳米簇混合物。利用场发射显微镜、电子显微镜、电子衍射和红外光谱对碳样品进行了结构研究。对样品发射特性的研究证实，这些材料的场发射发生在比金属和半导体低两个数量级以上的电场中。这些材料的电子发射机制明显与隧穿发射有关。

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A study of field emission from supramolecular carbon structures

The characteristics of field emission from carbon nanoclusters (mainly nanotubes with open ends) produced by cold destruction from natural graphite are investigated. The specimen employed in the study is a coating of carbon nanocluster mixture in N-methylpirolidone upon a tungsten electrode. Field emission microscopy, electron microscopy, electron diffraction and IR spectroscopy are employed in structure studies of the carbon specimen. Investigation of the emission properties of the specimens confirmed that field emission from these materials takes place in electric fields more than two orders of magnitude lower than in metals and semiconductors. The mechanism of electron emission from these materials is evidently linked to tunneling emission.

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Technical Digest of the 17th International Vacuum Nanoelectronics Conference (IEEE Cat. No.04TH8737)

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