Hexagon Platinum Schottky Contact with ZnO Thin Film for Hydrogen Sensing

Authors

  • Mas Elyza Mohd Azol Faculty of Electrical Eng., Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Nafarizal Nayan MiNT-SRC, Universiti Tun Hussein Onn (UTHM), Malaysia
  • Uda Hashim Institute of Nanoelectronic Engineering(INEE), Universiti Malaysia Perlis, Malaysia
  • Muhammad Kashif Institute of Nanoelectronic Engineering(INEE), Universiti Malaysia Perlis, Malaysia
  • Mahnaz Shafiei Science and Engineering Faculty,Chemistry, Physics, Mechanical Engineering, Nanotechnology and Molecular Science Queensland University of Technology(QUT), Brisbane, Australia
  • Pei Ling Leow Faculty of Electrical Eng., Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Rashidah Arsat Faculty of Electrical Eng., Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia

DOI:

https://doi.org/10.11113/jt.v64.2086

Keywords:

Schottky diode, electrode, hexagon-shape, zinc Oxide, hydrogen sensor

Abstract

This paper reports on the study of the effect on adding total peripheries and sharp edges to the Schottky contact as a hydrogen sensor. Schottky contact was successfully designed and fabricated as hexagon-shape. The contact was integrated together with zinc oxide thin film and tested towards 1% hydrogen gas. Simulations of the design were conducted using COMSOL Multiphysics to observe the electric field characteristic at the contact layer. The simulation results show higher electric field induced at sharp edges with 4.18×104 V/m. Current-voltage characteristic shows 0.27 V voltage shift at 40 µA biased current.

References

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Published

2013-09-15

Issue

Vol. 64 No. 3: Special Edition

Section

Science and Engineering

License

Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.

How to Cite

Hexagon Platinum Schottky Contact with ZnO Thin Film for Hydrogen Sensing. (2013). Jurnal Teknologi, 64(3). https://doi.org/10.11113/jt.v64.2086