Field emission properties and reliability of ZnO nanorod, nanopagoda, and nanotip current emitters

I. Chuan Yao*, Pang Lin, Tseung-Yuen Tseng

*Corresponding author for this work

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

Fabrication, optical, and field emission properties of ZnO nanorod, nanopagoda, and nanotip emitters were studied. The ZnO nanotip emitters are prepared by using combination of solution method and oxygen plasma treatment. All the emitters exhibit a highly c-axis preferred orientation crystalline structure. The nanopagoda and nanotip emitters have turn-on fields of 1.43 and 1.07 V/μm, respectively, under 1 μA/cm 2 and field enhancement factors of 3681 and 4735 at 25 °C, respectively. The nanotip emitters with tip angle of 20° and number density of 10 emitters/μm 2 have very stable emission at 25 °C over 2 × 10 4 s and successive operation between the 25°C and 100 °C over 5000 s. Our finding provides an effective route for practical applications in flat panel display and light-emitting device in the future.

Original languageEnglish
Article number6187734
Pages (from-to)746-750
Number of pages5
JournalIEEE Transactions on Nanotechnology
Volume11
Issue number4
DOIs
StatePublished - 17 Jul 2012

Keywords

  • Field emission properties
  • nanopagoda
  • nanotip
  • oxygen plasma treatment
  • reliability
  • ZnO nanorod

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