Dr. Ghassan Al- Saadi is a researcher majored in Semiconductor Materials He received his (PhD) degree from Belarusian State University(BSU) - Belarus. Dr. Al-Saadi held several senior academic and administrative positions including teaching different courses varying from undergraduate to graduate level, in addition to supervising MSc. students. Dr. Al-Saadi has more than fifteen years of teaching and research experiences at different Universities (University of Baghdad, University of Al-Anbar and University of Benghazi). From September 2014 to March 2016, he worked as a Research Associate at York University, Faculty of Science, Toronto, Canada on a project entitled: “Study of the Structural and Optical characteristics of CdSe Quantum Dots prepared by Wet Chemical Method (WCM) for photovoltaic and medical sensor applications”. In addition to that he Carried out a project entitled “Measuring Quantum dots particle size distributions on an uneven background from TEM images".