Professor Abdelkader Aissat received the magister diploma and doctorate degree in electronics from the University of Blida, ENP Algeria in 1999 and 2007 respectively. He became lecturer in the department of electronics of Blida University. He occupied a post of the head of electronics department. He joined the Engineering Faculty of Blida University in 2000 to 2003 as director of pedagogy and research. His research interests include materials, semiconductors, semiconductors lasers, detection, modeling of the components optoelectronic, microwaves and photovoltaic applications. His is an active reviewer in Elsevier, IEEE, Springer and Wiley, Taylor & Francis, MPDI,,….... He has several publications more than 250. He has achieved international projects (CNRS, PHC, TASSILI, ……) in the field of materials, new materials and nanostructures for optoelectronic, photonic and photovoltaic applications.