In recent years, nanomaterials particularly in film structures have attracted much attention particularly for electronic device applications. The enhancement of surface area and confinement effects induced by the nanomaterials are believed to significantly improve the device performance. Among of the many beneficial nanomaterials, zinc oxide (ZnO) nanomaterials are particularly very interesting to study and investigate due to their unique and excellent physical & chemical characteristics. In addition, ZnO nanomaterials have huge potentials for various applications including solar cells and sensors. ZnO nanomaterials exhibit an interesting mixture of multifunctional properties in term of optical, structural, and electrical properties. In this research, these properties were investigated thoroughly to understand the ZnO characteristics that are suitable for the sensing applications. In this talk, I would outline our efforts over past few years to fabricate ZnO nanorod array films using solution immersion method and to develop these nanostructures into rational sensing devices. Our works was focused on self-standing aligned ZnO nanorod array films, which directly grown on the glass substrate. In this lecture, these ZnO nanorod properties will be discussed. The factors that affected the sensing performance and their sensing mechanism will also be discussed in this lecture.

Ir. Ts. Dr. Mohamad Hafiz Mamat graduated from Department of Electrical& Electronic Engineering and Information Engineering, Nagoya University, Japan in 2005 and received both MSc degree and PhD degree in Electrical Engineering from Universiti Teknologi MARA (UiTM) Shah Alam, Malaysia. His research area is in the field of nanoelectronics, which focuses on nanomaterial syntheses and fabrication of electronic devices such as sensors and solar cell. He was awarded both Professional Engineer (Ir.) and Professional Technologist (Ts.) in 2018. He was assigned as visiting scientist at BSA Rahman Crescent Institute of Science and Technology, Chennai India in 2018, and his studies focused on nanotechnology majoring in sensor based on nanostructured film. Currently, he is a Head of NANO-ElecTronic Centre (NET), Faculty of Electrical Engineering, UiTM. He published over 300 papers in journals and conference proceedings. In addition, he has 2 Malaysian patents and several copyrights. He joined several conferences and symposia in international and national level as participant, invited speaker or keynote speaker. He also serves as head of technical committee of NANO-SciTech Conferences. He supervised 5 PhD theses and 4 MSc theses. Currently, he is supervising 8 PhD and 6 MSc students. He received more than 50 awards at national and international level.