Pine-tree-like morphologies of nitrogen-doped carbon nanotubes: Electron field emission enhancement

María Luisa García-Betancourt, Néstor Perea-López, Sofía M. Vega-Díaz, Florentino López-Urías, Ana Laura Elías, Josué Ortiz-Medina, Emilio Muñoz-Sandoval, Mauricio Terrones

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Nitrogen-doped multiwalled carbon nanotube (CNT) bundles exhibiting pine-tree-like morphologies were synthesized on silicon-silicon oxide (Si/SiO2) substrates using a pressure-controlled chemical vapor deposition process. Electron field emission (FE) measurements showed a notable emission improvement at low turn-on voltages for the CNT pine-like morphologies (e.g., 0.59 V/m) in comparison with standard aligned N-doped CNTs (>1.5 V/m). We envisage that these pine-tree-like structures could be potentially useful in the fabrication of efficient FE and photonic devices.

Original languageEnglish (US)
Pages (from-to)2441-2450
Number of pages10
JournalJournal of Materials Research
Issue number20
StatePublished - Oct 28 2014

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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