Prof. Dr. Ahmed Nahhas,

Umm Al Qura University

Ahmed M. Nahhas has received his Master’s degree in Computer Engineering from Illinois Institute of Technology, Chicago, Illinois, USA in 1996 and Ph.D. in Electrical Engineering (Electronics) from University of Pittsburgh, Pittsburgh, Pennsylvania, USA in 2001. Professor Nahhas’s research has been centered on developing new photonic and electronic devices at micro and nano-scales involving various functional materials such as rare-earth doped oxides, wideband gap semiconductors, and nano-structured materials. Prof. Nahhas’s research investigates epitaxial growth and fabrication of ZnO and GaN optical devices. Fabrication of MSM photo-detectors have been developed on macro scale area of wafer surface using a directed self-organization method, and have been investigated as an interaction medium in optical, electrical, chemical and biological domains. Surface-Plasmon phenomena occurring in structures are of particular interest, since many novel properties can be derived from those and can be incorporated into an on-chip configuration for interaction. Professor Nahhas has participated in reviewing several academic articles and dissertations in the area of electrical, electronics, communications, control engineering and e-learning. He is an official reviewer of journals such as American Journal of Nanomaterials—USA, many International conferences and Associate Professor rank applications for several Saudi Universities. Professor Nahhas served many prestigious leadership positions including the dean of the College of Engineering at Al-Lith, head of the Department, Vice Dean at Umm Al Qura University, Makkah. Currently, he is with the College of Engineering and Islamic Architecture, Umm Al Qura University, Makkah, Kingdom of Saudi Arabia.

1books edited

2chapters authored

Latest work with IntechOpen by Prof. Dr. Ahmed Nahhas,

This book presents a review of recent advances in ZnO-based nanomaterials and devices. ZnO as a nanomaterial has gained substantial interest in the research area of wide bandgap semiconductors and is considered to be one of the major candidates for electronic and photonic applications. ZnO has distinguished and interesting electrical and optical properties and is considered to be a potential material in optoelectronic applications such as solar cells, surface acoustic wave devices, and UV emitters. ZnO's unique properties have attracted several researchers to study its electrical and optical properties. As a nanostructured material, ZnO exhibits many advantages for nanodevices. Moreover, it has the ability to absorb the UV radiation.

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