Hexagon platinum Schottky contact with ZnO thin film for hydrogen sensing

Mohd Azol, Mas Elyza, Nayan, Nafarizal, Hashim, Uda, Kashif, Muhammad, Shafiei, Mahnaz, Ling Leow, Pei, & Arsat, Rashidah (2013) Hexagon platinum Schottky contact with ZnO thin film for hydrogen sensing. Jurnal Teknologi, 64(3), pp. 99-103.

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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.

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ID Code: 66309
Item Type: Journal Article
Refereed: Yes
Keywords: Schottky diode, electrode, hexagon-shape, zinc Oxide, hydrogen sensor
DOI: 10.11113/jt.v64.2086
ISSN: 2180-3722
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 Penerbit UTM Press.
Deposited On: 19 Jan 2014 23:18
Last Modified: 22 Jan 2014 03:02

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