Field electron emission of double walled carbon nanotube film prepared by drop casting method

Prakash R. Somani, Savita P. Somani, Shu Ping Lau, E. Flahaut, M. Tanemura, M. Umeno

Research output: Journal article publicationJournal articleAcademic researchpeer-review

24 Citations (Scopus)


Thick films of double walled carbon nanotubes (DWCN) were deposited on indium-tin-oxide (ITO) coated glass substrates by drop casting method and were studied for their field electron emission property in a parallel plate configuration using bare ITO coated glass as counter electrode. They show excellent field electron emission property with low turn-on-field of about 0.8 V/μm and threshold field of about 1.8 V/μm. Field enhancement factor calculated from the non-saturated region of the FN plot is about 1715. Field electron emission current was observed to be stable up to 3000 min, indicating thereby that DWCNs are excellent electron emitters with appreciable stable performance.
Original languageEnglish
Pages (from-to)788-792
Number of pages5
JournalSolid-State Electronics
Issue number5
Publication statusPublished - 1 May 2007
Externally publishedYes


  • Double walled carbon nanotubes
  • Field electron emission

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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