Habtamu Fekadu Etefa: Received his PhD in Physics from the National Taiwan University of Science and Technology, Taiwan in 2020. He is presently working at Dambi Dollo University as an Assistant Professor of Physics, and Director, Post Graduate Program Directorate, Dambi Dollo University, Ethiopia. His research interests span on the areas of Nano-Particle Preparation, Characterization, mainly, Energy Conversion of DSSC, Quantum Dots. He published more than 9 research articles in reputable international journals. In addition, he made numerous contributions in serving as a reviewer, assistant editor, and editor for various national and international journals. Organized national and international conferences. Currently he is supervising 5 MSc students’ scholarships.