Fabrication of nitrogen-doped carbon nanotube arrays and their field emission properties

Yang Chai, Ligang Yu, Mingsheng Wang, Qifeng Zhang, Jinlei Wu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

Carbon nanotube (CNT) arrays have been produced on silicon substrate by an one-step route based on the pyrolysis of mixture of the ferrocene and melamine under well-chosen synthesis condition. Transmission electron microscope (TEM) and scanning electron microscope (SEM) studies showed the products were all multi-walled CNTs that are about 50 nm in diameter and about 15 μm in length, growing outward separately and perpendicularly to the substrate. X-ray photoelectron spectroscopy (XPS) and TEM studies revealed that the CNTs were nitrogen-doped. Field emission measurement suggested that the nitrogen-doped CNT arrays begin to emit electron at electric field of 1.60 V/μm, and field emission images exhibited the high emission sites density.
Original languageEnglish
Pages (from-to)89-92
Number of pages4
JournalBeijing Daxue Xuebao (Ziran Kexue Ban)/Acta Scientiarum Naturalium Universitatis Pekinensis
Volume42
Issue number1
Publication statusPublished - 1 Jan 2006
Externally publishedYes

Keywords

  • Carbon nanotubes
  • Doping
  • Field emission

ASJC Scopus subject areas

  • Engineering(all)

Cite this