Low-level NO gas sensing properties of Zn1-xSnxO nanostructure sensors under UV light irradiation at room temperature

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Er I. K., Cagirtekin A. O., Corlu T., YILDIRIM M. A., ATEŞ A., ACAR S.

BULLETIN OF MATERIALS SCIENCE, vol.42, no.1, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 42 Issue: 1
  • Publication Date: 2019
  • Doi Number: 10.1007/s12034-018-1714-z
  • Journal Name: BULLETIN OF MATERIALS SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: Gas sensor, UV light irradiation, Sn-doped ZnO nanostructures, ZNO, PERFORMANCE
  • Gazi University Affiliated: Yes

Abstract

Zn1-xSnxO (x=0, 0.05, 0.10, 0.15, 0.20) nanostructures have been grown through the successive ionic layer adsorption and reaction method. The structural, morphological and compositional properties of the nanostructures have been characterized through X-ray diffraction, scanning electron microscope and energy dispersive X-ray analysis, respectively. The NO gas sensing properties of sensors to 20ppb have been systematically investigated in the dark and under UV light irradiation. A Zn0.90Sn0.10O sensor has exhibited the highest response for 20ppb NO gas compared with other sensors. The sensor response has increased from 1.9 to 43% depending on the UV light irradiation for the Zn0.90Sn0.10O sensor. Zn0.90Sn0.10O nanostructure can be used as a suitable gas sensor material for detection of low concentration levels of NO gas.