Enhanced field emission properties of double-walled carbon nanotubes coated with lead selenide nanoparticles

Dong Hoon Shin, Cheol Jin Lee, Youngmin Choi, Jong Ung Kim

Research output: Contribution to journalArticlepeer-review

Abstract

We studied on the field emission properties of double-walled carbon nanotubes (DWCNTs) coated with lead selenide (PbSe) nanoparticles. PbSe nanoparticles were uniformly attached on the surface of the DWCNTs by a simple chemical process. The PbSe-coated DWCNTs showed highly increased emission current density and enhanced emission stability over 20 h, compared with raw DWCNTs. We consider that the enhanced field emission properties of PbSe-coated DWCNTs were attributed to the increased field enhancement factor and lowered work function of the emitters.

Original languageEnglish
Pages (from-to)594-598
Number of pages5
JournalTransactions of the Korean Institute of Electrical Engineers
Volume59
Issue number3
Publication statusPublished - 2010 Mar

Keywords

  • Carbon nanotube
  • Field emission
  • Lead selenide
  • Nanoparticle

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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