Author/Authors :
AL-HARDAN, N. Universiti Sains Malaysia - School of Physics, Malaysia , ABDULLAH, M.J. Universiti Sains Malaysia - School of Physics, Malaysia , ABDUL AZIZ, A. Universiti Sains Malaysia - School of Physics, Malaysia , AHMAD, H. Universiti Sains Malaysia - School of Physics, Malaysia
Abstract :
A ZnO gas sensor was successfully prepared by RF sputtering. The maximum sensitivity of the sensor for vinegar test application was at 400°C. The ZnO based sensor showed good sensitivity for vinegar test in the concentration range of 4% to 9%. The work reveals the ability of using ZnO gas sensor to determine the acid concentrations of the vinegars for food requirements.
