Albashir Zomrawi, A. M. Awadelgied, S. F. Abdalah and K. Al Naimee
Zinc Oxide-based hydrogensensors are gaining wide popularity in the industry due to their reliability and high specificity to hydrogen. Any hydrogen sensor technology needs to satisfy the sensitivity basic requirement. Number of sensors have been developed to detect hydrogen depending on the approach used. In this research, Zinc Oxide thin films have been prepared on glass substrates and explored as a fast response sensor to hydrogen gas. Films were prepared by vaporization deposition technique with annealing temperature of about 6000 C. The optical characteristics of the prepared films show that they are highly sensitive, but their properties vary considerably when the measurements are conducted in vacuum or in air. The response – recovery time of Zinc Oxide materials to hydrogen gas is characterized to be relatively extremely short. The new sensor system success to detect hydrogen in a wide dynamic range especially in the range of 500-650nm,in quick and safe mode.
Catalytic Bead, Field Effect Transistors, Gaschromatography, Hydrogen Sensor, Mass Spectrometry, Metal Oxide Semiconductor, Metal Oxide Sensors, Solid-State, Surface Acoustic Wave, Thermal Conductivity.