Excellent field emission from semialigned carbon nanofibers grown on cylindrical copper surface

Mahanandia, P and Arya, V and Bhotla, PV and Subramanyam, SV and Schneider, JJ and Nanda, KK (2009) Excellent field emission from semialigned carbon nanofibers grown on cylindrical copper surface. In: Applied Physics Letters, 95 (8). 083108-083111.

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Abstract

We report the field emission from carbon nanofibers (CNFs) grown directly on cylindrical copper by a simple pyrolysis technique. The turn-on field is 0.17 V/µm and the emission current density is 0.9 mA/cm2 at 0.35 V/µm. The emission current is stable at a field of 0.35 V/µm and 6.5×10−6 Torr. The excellent field emission behavior is attributed to the sp2 phase in CNFs and the stable emission is due to the direct growth. The direct growth on cylindrical cathode is advantageous for field emission. ©2009 American Institute of Physics.

Item Type:	Journal Article
Publication:	Applied Physics Letters
Publisher:	American Institute of Physics
Additional Information:	Copyright of this article belongs to American Institute of Physics.
Keywords:	carbon fibres;cathodes;current density;field emission; nanofibres;nanotechnology; pyrolysis
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	13 Dec 2009 10:50
Last Modified:	19 Sep 2010 05:46
URI:	http://eprints.iisc.ac.in/id/eprint/23678

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