Ultra-low-voltage Schottky-barrier field-enhanced electron emission from gold nanowires electrochemically grown in modified porous alumina templates

Ramin Banan-Sadeghian, Simona Badilescu, Yahia Djaoued, Subramanian Balaji, Vo Van Truong, Mojtaba Kahrizi

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Superior field emission (FE) action has been observed from a tailored array of gold nanowires (AuNWs) grown in porous anodic alumina (PAA) templates. The turn-on voltage was found to be ∼0.2 V, which is far less than the values reported earlier for diamond-coated cathodes and carbon nanotubes (CNTs). Furthermore, the FE current was unaffected by the ambient gas pressure. Such a low-voltage FE is attributed here to the formation of a Schottky barrier at the interface of gold and amorphous alumina scales that remain on the AuNWs.

Original languageEnglish
Pages (from-to)312-314
Number of pages3
JournalIEEE Electron Device Letters
Volume29
Issue number4
DOIs
Publication statusPublished - 2008 Apr
Externally publishedYes

Keywords

  • Field emission (FE)
  • Gold nanowires (AuNW)
  • Schottky-barrier field enhancement

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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