TITLE

Field emission property of highly ordered monodispersed carbon nanotube arrays

AUTHOR(S)
Yuan, Z. H.; Huang, H.; Dang, H. Y.; Cao, J. E.; Hu, B. H.; Fan, S. S.
PUB. DATE
May 2001
SOURCE
Applied Physics Letters;5/14/2001, Vol. 78 Issue 20, p3127
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A template-synthesis technique based on self-ordered hexagonal nanopore alumina templates was applied to synthesize highly ordered carbon nanotube arrays via thermal decomposition of ethylene with iron as the catalyst electrodeposited into the bottom of the pores. The resultant carbon nanotubes are monodispersed and have open ends with uniform sizes. It was found that the insulating oxide layer lying between the carbon nanotubes and the underlying aluminum greatly obstructs the electron emission from the carbon nanotube arrays. After the oxide layer was removed, the arrays exhibited excellent field emission properties with a threshold electric field of ∼2.8 V/μm and emission current density of 0.08 mA/cm[sup 2] at 3.6 V/μm. © 2001 American Institute of Physics.
ACCESSION #
4710675

 

Related Articles

  • The environmental stability of field emission from single-walled carbon nanotubes. Dean, Kenneth A.; Chalamala, Babu R. // Applied Physics Letters;11/8/1999, Vol. 75 Issue 19, p3017 

    Focuses on long-term field emission stability from single-walled carbon nanotubes. Ability of unballasted nanotubes to operate without degradation for over 350 hours at 10(supra-9) Torr; Less sensitivity of the nanotubes to operating environments than metallic emitters; Susceptibility to damage...

  • Field emission from dense, sparse, and patterned arrays of carbon nanofibers. Teo, K. B. K.; Chhowalla, M.; Amaratunga, G. A. J.; Milne, W. I.; Pirio, G.; Legagneux, P.; Wyczisk, F.; Pribat, D.; Hasko, D. G. // Applied Physics Letters;3/18/2002, Vol. 80 Issue 11, p2011 

    We compare the field emission characteristics of dense (10[sup 9]nanofibers/cm²), sparse (10[sup 7] nanofibers/cm²), and patterned arrays (10[sup 6] nanofibers/cm²) of vertically aligned carbon nanofibers on silicon substrates. The carbon nanofibers were prepared using plasma-enhanced...

  • Current saturation mechanisms in carbon nanotube field emitters. Dean, Kenneth A.; Chalamala, Babu R. // Applied Physics Letters;1/17/2000, Vol. 76 Issue 3 

    Recent studies have shown a current limiting effect in the field emission behavior of carbon nanotubes. In this letter, we demonstrate that an individual nanotube exhibits current saturation above 100 nA of emission current, and we show that this current saturation is a direct result of an...

  • Polymerized carbon nanobells and their field-emission properties. Xucun Ma; Enge Wang; Wuzong Zhou; Jefferson, David A.; Chen, Jun; Shaozhi Deng; Ningsheng Xu; Yuan, Jun // Applied Physics Letters;11/15/1999, Vol. 75 Issue 20, p3105 

    Studies the field-emission properties of polymerized carbon nanofiber semiconductor film. Spatial distribution of emission sites of a nanofiber film; Field-emission patterns in carbon nanobells; Current-field characteristic of a carbon-nitrogen nanofiber film.

  • Fully sealed, high-brightness carbon-nanotube field-emission display. Choi, W.B.; Chung, D.S.; Kang, J.H.; Kim, H.Y.; Jin, Y.W.; Han, I.T.; Lee, Y.H.; Jung, J.E.; Lee, N.S.; Park, G.S.; Kim, J.M. // Applied Physics Letters;11/15/1999, Vol. 75 Issue 20, p3129 

    Examines a fully sealed, high-brightness carbon-nanotube field-emission display. Transmission electron microscopy image of single-walled nanotubes; Structure of the fully sealed, matrix-addressable carbon nanotube flat panel display; Components of the panel structure of carbon nanotube-based...

  • Studying the morphology of nanocrystalline graphite field-emission cathode grown on a diamond grid. Krivchenko, V. A.; Pilevskii, A. A.; Rakhimov, A. T.; Suetin, N. V.; Timofeev, M. A. // Technical Physics Letters;Jan2010, Vol. 36 Issue 1, p23 

    The morphology of a nanocrystalline graphite field-emission cathode based on a polycrystalline diamond grid has been studied in order to elucidate the nature of electron-emitting centers. Ribbonlike and cylindrical carbon nanostructures have been found on the emitter surface, which possess...

  • Screened field enhancement factor for the floating sphere model of a carbon nanotube array. Zhbanov, A. I.; Pogorelov, E. G.; Chang, Yia-Chung; Lee, Yong-Gu // Journal of Applied Physics;Dec2011, Vol. 110 Issue 11, p114311 

    The screened field enhancement factor for a carbon nanotube (CNT) placed in a CNT array (which is reduced due to the screening effect) is derived based on the 'floating sphere' model. We obtain an expression for the field enhancement factor for a CNT in the array as...

  • Electron field emitters based on multiwalled carbon nanotubes decorated with nanoscale metal clusters. A. Reddy; M. Shaijumon; K. Sethupathi; S. Ramaprabhu // Journal of Nanoparticle Research;Feb2008, Vol. 10 Issue 1, p179 

    Abstract  The present work describes the field emission characteristics of nanocrystalline metal clusters decorated multi walled carbon nanotubes (MWNT) field emitters fabricated over flexible graphitized carbon cloth. MWNT have been synthesized by catalytic chemical vapour...

  • Field emission from vertically aligned conductive IrO[sub 2] nanorods. Reui-San Chen; Ying-Sheng Huang; Ya-Min Liang; Chim-Sung Hsieh, Ichiro; Dah-Shyang Tsai; Kwong-Kau Tiong, Ichiro // Applied Physics Letters;3/1/2004, Vol. 84 Issue 9, p1552 

    We report on the preparation and field-emission properties of vertically aligned conductive IrO[sub 2] nanorods. The unique geometrical features of IrO[sub 2] nanorods, including nanosized structure and self-assembled sharp tip, exhibit a strong effect on field enhancement (β∼40 000),...

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