TITLE

Nanotip formation on a carbon nanotube pillar array for field emission application

AUTHOR(S)
Rai, Padmnabh; Mohapatra, Dipti R.; Hazra, K. S.; Misra, D. S.; Tiwari, S. P.
PUB. DATE
September 2008
SOURCE
Applied Physics Letters;9/29/2008, Vol. 93 Issue 13, p131921
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The field emission of a carbon nanotube (CNT) pillar array has been improved significantly by plasma treatment in a mixture of hydrogen and nitrogen gases. The plasma treatment for 30 s on a pillar array decreased the turn-on electric field from 0.48 to 0.37 V/μm and increased the field enhancement factor from 6200 to 6900. The emission current density increased by a factor of ≈40. We report in this letter the technique of generating nanotips on CNT pillars with an enormous potential to become a tool for the control and manipulation of CNTs and nanostructures.
ACCESSION #
34771863

 

Related Articles

  • Field emission from carbon layers containing very long and sparse nanotubes/nanofilaments. Musatov, A. L.; Izrael'yants, K. R.; Ormont, A. B.; Krestinin, A. V.; Kiselev, N. A.; Artemov, V. V.; Zhigalina, O. M.; Grigoriev, Yu. V. // Applied Physics Letters;10/31/2005, Vol. 87 Issue 18, p181919 

    Field-emission characteristics of carbon layers with very long (up to several mm) and sparse nanotubes (nanofilaments) have been investigated. For such layers field emission current of 10 μA is registered at very low average electric field Eav=0.16 V/μm and the values of the field...

  • Two-process model of electron field emission from nanocarbons: Temperature effect. Aitman, Igor S; Pikhitsa, Peter V.; Choi, Mansoo // Journal of Applied Physics;9/15/2004, Vol. 96 Issue 6, p3491 

    The two-process model on electron field emission from nanocarbons that we recently suggested [ I. S. Altman, P. V. Pikhitsa, and M. Choi, Appl. Phys. Lett. 84, 1126 (2004) ] has solved the existing experimental puzzles such as an occurrence of the sharp knee in the Fowler-Nordheim (FN) plot. Our...

  • In situ observation of field emissions from an individual carbon nanotube by Lorenz microscopy. Fujieda, T.; Hidaka, K.; Hayashibara, M.; Kamino, T.; Matsumoto, H.; Ose, Y.; Abe, H.; Shimizu, T.; Tokumoto, H. // Applied Physics Letters;12/6/2004, Vol. 85 Issue 23, p5739 

    In situ observation of field emissions from an individual carbon nanotube (CNT) was performed by Lorenz microscopy. A bright spot appeared by Lorenz microscopy at the end of the CNT tip during field emission. The bright spot is assumed to be related to the emission site on the CNT. A drastic...

  • Nitrogen incorporated ultrananocrystalline diamond based field emitter array for a flat-panel x-ray source. Posada, Chrystian M.; Grant, Edwin J.; Divan, Ralu; Sumant, Anirudha V.; Rosenmann, Daniel; Stan, Liliana; Lee, Hyoung K.; Castaño, Carlos H. // Journal of Applied Physics;2014, Vol. 115 Issue 13, p134506-1 

    A field emission based flat-panel transmission x-ray source is being developed as an alternative for medical and industrial imaging. A field emitter array (FEA) prototype based on nitrogen incorporated ultrananocrystalline diamond film has been fabricated to be used as the electron source of...

  • Work function modulation of bilayer MoS2 nanoflake by backgate electric field effect. Li, Yang; Xu, Cheng-Yan; Zhang, Bao-You; Zhen, Liang // Applied Physics Letters;7/15/2013, Vol. 103 Issue 3, p033122 

    We report the work function modulation of bilayer MoS2 nanoflake induced by backgate electric filed. The Fermi level of bilayer MoS2 increased by 115 meV with the backgate bias larger than the threshold voltage. Carrier doping induced by the electric filed was responsible for the variation of...

  • Strategies to Improve Field Emission Performance of Nanostructural ZnO. Xu, C. X.; Sun, X. W. // Journal of Electronic Materials;May2007, Vol. 36 Issue 5, p543 

    Nanostructural ZnO is a good candidate for field emission (FE) because of its high aspect ratio, controllable electrical conductivity, and good thermal and chemical stability. In order to improve the FE performance, ZnO nanopins, gallium-doped nanofibers, periodic nanorod arrays, and aligned...

  • Field emission properties of carbon nanotube pillar arrays. Killian, Jessica L.; Zuckerman, Nathaniel B.; Niemann, Darrell L.; Ribaya, Bryan P.; Rahman, Mahmud; Espinosa, Robert; Meyyappan, M.; Nguyen, Cattien V. // Journal of Applied Physics;Mar2008, Vol. 103 Issue 6, p064312 

    Carbon nanotube pillar arrays (CPAs) for cold field emission applications were grown directly on polished 70/30 at. % NiCr alloy surfaces patterned by photolithography. A carbon nanotube (CNT) pillar is a localized, vertically aligned, and well-ordered group of multiwalled CNTs resulting from...

  • Field emission from coated nanowires. Marinov, T.; Buldum, A.; Clemons, C. B.; Kreider, K. L.; Young, G. W.; Hariharan, S. I. // Journal of Applied Physics;8/15/2005, Vol. 98 Issue 4, p044314 

    This work investigates radial field emission from an Al-coated nanowire due to a time harmonic incident electromagnetic field. An analytical expression for the electric field inside and outside a smooth nanowire is derived. Through the boundary perturbation technique, this expression is...

  • Enhanced near-band-edge emission and field emission properties from plasma treated ZnO nanowires. Qing Zhao; Tuocheng Cai; Sheng Wang; Rui Zhu; Zhimin Liao; Dapeng Yu // Applied Physics A: Materials Science & Processing;Jul2010, Vol. 100 Issue 1, p165 

    Near-band-edge emission in photoluminescence of ZnO nanowires was found to be significantly improved after plasma treatment. The ratio of ultraviolet emission peak intensity before and after plasma treatment is as high as 3.5. Field emission properties were considerably enhanced after plasma...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics