Enhanced field emission properties of Ag nanoparticle-decorated ZnO nanorods under ultraviolet illumination

Chih Chiang Yang, Yan Kuin Su*, Ming Yueh Chuang, Hsin-Chieh Yu, Chih Hung Hsiao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

In this paper, pure ZnO and Ag nanoparticle (NP)-decorated ZnO nanorods (NRs) were successfully synthesized via a low-temperature hydrothermal method. The as-prepared samples were characterized through high-resolution transmission electron microscopy and selected-area electron diffractometry. The enhanced field emission (FE) behavior of the Ag NP-decorated ZnO NRs along the [0002] crystal c-axis and their single-crystalline hexagonal structures were characterized with surface-protruding Ag NPs. The resulting FE in the dark and under ultraviolet illumination had low turn-ON electric fields of 3.93 and 2.04 V · μm-2, whereas the enhanced field enhancement factors were 1593 and 57 872, respectively.

Original languageEnglish
Article number7118142
Pages (from-to)2300-2305
Number of pages6
JournalIEEE Transactions on Electron Devices
Volume62
Issue number7
DOIs
StatePublished - 1 Jul 2015

Keywords

  • Ag NP-decorated ZnO nanorods (NRs)
  • field emission (FE)
  • hydrothermal

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