Self-oscillations of carbon nanotube twist-yarn during field emissionстатья

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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.

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[1] Self-oscillations of carbon nanotube twist-yarn during field emission / V. I. Kleshch, A. A. Zakhidov, A. N. Braztsov et al. // Physica Status Solidi (B): Basic Research. — 2009. — Vol. 246, no. 11-12. — P. 2658–2661. Electromechanical self-oscillations were induced during field emission from the lateral surface of a twisted nanotube yam obtained by solid-state spinning from a forest of vertically aligned multi-wall carbon nanotubes (CNT). Oscillations at several kilohertz frequencies were driven by applying a constant voltage between fixed opposite ends of the nanotube yam and a flat anode. An electromechanical model is developed which explains the observed phenomenon. The model is equally applicable to any mechanically flexible field emitter including sin-le nanoemitters like CNTs, which have shown a self-oscillating behaviour in several previous in situ experiments. This phenomenon opens a possibility of developing a new type of devices for conversion of DC voltage into the high frequency electromagnetic oscillations utilizing flexible nanoemitters. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA. Weinheim. [ DOI ]

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