Combinatorial evaluation for field emission properties of carbon nanotubes part II: High growth rate system

Yosuke Shiratori, Suguru Noda

研究成果: Article

4 引用 (Scopus)

抄録

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.

元の言語English
ページ(範囲)12938-12947
ページ数10
ジャーナルJournal of Physical Chemistry C
114
発行部数30
DOI
出版物ステータスPublished - 2010 8 5
外部発表Yes

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)

これを引用

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