DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/3802

Title: Dramatic Enhancement of the Emission Current Density from Carbon Nanotube Based Nanosize Tips with Extremely Low Onset Fields
Authors: HAZRA, KS
RAI, P
MOHAPATRA, DR
KULSHRESTHA, N
BAJPAI, R
ROY, S
MISRA, DS
Keywords: electron-emission
emitters
bundle
arrays
Issue Date: 2009
Publisher: AMER CHEMICAL SOC
Citation: ACS NANO, 3(9), 2617-2622
Abstract: Nanostructures based on multiwalled carbon nanotubes (MWNTs) are fabricated using plasma of the mixture of hydrogen and nitrogen gases. The plasma-sharpened tips of nanotubes contain only a few tubes at the apex of the structure and lead to the dramatic enhancement in the emission current density by a factor >10(6) with the onset field as low as 0.16 V/mu m. We propose that the nature of the tunneling barrier changes significantly for a nanosize tip at very high local electric field and may lead to the saturation in the emission current density.
URI: http://dx.doi.org/10.1021/nn900674e
http://dspace.library.iitb.ac.in/xmlui/handle/10054/3802
http://hdl.handle.net/10054/3802
ISSN: 1936-0851
Appears in Collections:Article

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback