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Individual Bi2O3-Functionalized ZnO Microwire for Hydrogen Gas Detection

  • Vasile Postica
  • Oleg Lupan
  • Jorit Gröttrup
  • Rainer Adelung
Conference paper
Part of the NATO Science for Peace and Security Series B: Physics and Biophysics book series (NAPSB)

Abstract

Individual micro- and nanostructures of metal oxides are known to be highly sensitive to surface phenomena due to their enhanced surface-to-volume ratio. In this work, an individual Bi2O3-functionalized ZnO microwire (Bi2O3/ZnO MW) with a diameter of ~2.2 μm was integrated into a sensing device using its direct transfer and placement in a focused ion beam (FIB)/scanning electron microscopy (SEM) equipment. The fabricated device was exposed to H2 gas at room temperature showing a detectable response. The gas response to 1000 ppm is ~28%.

Keywords

Hybrid nanocomposite ZnO Hydrogen gas sensor Bi2O3 

Notes

Acknowledgments

This research was sponsored partially by the German Research Foundation (DFG) under the schemes PAK 902 (AD 183/12-2) and by the STCU within the Grant 6229.

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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  • Vasile Postica
    • 1
  • Oleg Lupan
    • 1
  • Jorit Gröttrup
    • 2
  • Rainer Adelung
    • 2
  1. 1.Department of Microelectronics and Biomedical EngineeringTechnical University of MoldovaChisinauRepublic of Moldova
  2. 2.Functional Nanomaterials, Institute for Materials ScienceKiel UniversityKielGermany

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