Combinatorial evaluation for field emission properties of carbon nanotubes part II

High growth rate system

Yosuke Shiratori, Suguru Noda

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Carbon nanotube (CNT) emitters are of interest for inclusion in cold cathodes and field emission displays. CNT field electron emitters self-organized on substrates with an Fe/Al2O3 catalytic/supporting layer, which accelerates CNT growth, are characterized using combinatorial libraries. A variety of morphologies are formed on single substrates by C 2H2 thermal chemical vapor deposition for 10 s at ambient pressure. Degradation of field emission decreases upon prolonged operation. Raman signals from thinner single-walled CNTs predominantly degrade during operation. Controlling the number of protruding thin CNTs is crucial to extracting current and ensuring sustainability. Thin CNTs protruding from CNT ensembles formed on a substrate with a multimodal distribution of catalyst particles show good field emission (FE) properties with practical sustainability. A potential design for self-organized thin CNTs fabricated by the current process is discussed on the basis of the combinatorial evaluation for field emission and 3D electric field simulations.

Original languageEnglish
Pages (from-to)12938-12947
Number of pages10
JournalJournal of Physical Chemistry C
Volume114
Issue number30
DOIs
Publication statusPublished - 2010 Aug 5
Externally publishedYes

Fingerprint

Carbon Nanotubes
Field emission
field emission
Carbon nanotubes
carbon nanotubes
evaluation
Sustainable development
Substrates
Field emission displays
Chemical vapor deposition
emitters
Cathodes
Electric fields
Degradation
cold cathodes
Catalysts
Electrons
vapor deposition
inclusions
degradation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

Combinatorial evaluation for field emission properties of carbon nanotubes part II : High growth rate system. / Shiratori, Yosuke; Noda, Suguru.

In: Journal of Physical Chemistry C, Vol. 114, No. 30, 05.08.2010, p. 12938-12947.

Research output: Contribution to journalArticle

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