Punched ZnO nanobelt networks for highly sensitive gas sensors

Chan Woong Na, Seung Young Park, Jong Heun Lee

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Punched ZnO nanobelt (NB) network sensors with strong adhesion to Au electrodes were fabricated by the vapor-phase growth of ZnS NB networks and subsequent thermal annealing. The punched ZnO NB networks showed sensitive and selective detection of trimethylamine (TMA), while no significant sensitivity or selectivity to a specific gas was observed in dense ZnO NB networks. This high TMA response can be explained by abundant chemoresistive contacts, effective electron depletion, and high surface area to volume ratio of punched ZnO NB networks.

Original languageEnglish
Pages (from-to)495-499
Number of pages5
JournalSensors and Actuators, B: Chemical
Volume174
DOIs
Publication statusPublished - 2012 Nov

Keywords

  • Gas sensors
  • Punched nanobelts
  • Trimethylamine
  • ZnO
  • ZnS

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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