Synthesis of carbon-nitrogen nanostructures by hot isostatic pressure apparatus and their field emission properties

Yang Doo Lee, V. D. Blank, D. V. Batov, S. G. Buga, Yun-Hi Lee, Sahn Nahm, Byeong Kwon Ju

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Abstract

Carbon-nitrogen (CN) nanofibers were synthesized in argon-nitrogen gas mixture at 75 MPa by high isostatic pressure (HIP) apparatus using a graphite resistive heater. The CN nanofibers were grown in random with the diameter of about 200 nm and the length over 5 μm. The structures obtained can be divided bamboo-like, spring-like, and bead necklace-like CN nanofibers. The nitrogen content of up to 8.4% was found in CN nanofibers by EELS analysis. Field emission results showed that the density of field emitters and the field enhancement factors changed by surface treatments and that CN nanofibers contained glass frit. The screen-printed CN nanofiber had a turn-on field of 2 V/μm.

Original languageEnglish
Pages (from-to)570-574
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume7
Issue number2
DOIs
Publication statusPublished - 2007 Feb 1

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Keywords

  • Carbon nanostructures
  • Field emission
  • High isostatic pressure (HIP)
  • TEM

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Materials Science (miscellaneous)
  • Engineering (miscellaneous)

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