Field-emission and photoelectrical characteristics of zno nanorods photodetectors prepared on flexible substrate

T. P. Chen, S. J. Young, S. J. Chang, C. H. Hsiao, C. S. Huang

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

Vertical zinc oxide nanorods were synthesized on flexible polyimide (PI) substrate by a low temperature process, aqueous method. The field emission performance of ZnO nanorods can be greatly enhanced by illuminating UV light. It was found that the turn-on electric field can be reduced from 4.3 to 2.0 Vm and it is attributed to generate a large number of electrons by UV illumination. Compared with the conventional ZnO film photodetectors, the ZnO nanorods photodetectors have much higher photocurrent. As a result, it is attributed to high surface-to-volume ratio of nanorods, which provide an efficient light trapping absorption.

Original languageEnglish
Pages (from-to)J153-J157
JournalJournal of the Electrochemical Society
Volume159
Issue number5
DOIs
Publication statusPublished - 2012 Apr 9

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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