Prof. Yarub Al-DouriAmerican University of Iraq, Sulaimani, Kurdistan, Iraq
Speech Title: Multi-application for Quinternary Alloys
Abstract: The Cu2Zn1-xCdxSnS4 quinternary alloy nanofibres with different Cd concentrations were grown on glass substrate using the electrospinning technique. The structural properties of Cu2Zn1-xCdxSnS4 quinternary alloy nanofibres were investigated by X-ray Diffraction (XRD), Field Emission-Scanning Electron Microscopy (FE-SEM) and Atomic Force Microscopy (AFM). Optical properties were analysed through UV-visible Spectrophotometry (UV-Vis) and Photoluminescence Spectroscopy (PL), which revealed that there is a decrease in band gap from 1.75 eV to 1.61 eV, with the increasing Cd concentration from x = 0 to x =1. The current–voltage measurements exhibited a power conversion efficiency of 3% under the solar illumination with intensity of 100 mW/cm2. Electrical properties supported that the Cu2Zn1-xCdxSnS4 quinternary alloy can be used as an absorber in solar cells. The bulk modulus, refractive index and dielectric constant, were also investigated.
Keywords: Alloy, Nanostructures, Optical.
Biography: Prof. Dr. Yarub Al-Douri is from American University of Iraq, Sulaimani. Al-Douri has Doctorat D’etat in Materials Science. He was appointed Full-Professor, Visiting Professor, Adjunct Professor, Consultant Expert, Associate Professor, Assistant Professor, Research Fellow (A), Scientific Collaborator and Post-doc in Iraq, Malaysia, Turkey, Algeria, Yemen, Singapore, Germany and France, respectively. Al-Douri has initiated Nanotechnology Engineering MSc Program and Nano Computing Laboratory, the first initiatives in Malaysia. He has received numerous accolades including World’s Top 2% Scientist Career-Long Citation Impact by Stanford University, USA 2020, World’s Top 2% Scientists by Stanford University, USA 2021 & 2020, OeAD Award, Austria 2020, Japan Society for the Promotion of Science (JSPS) Award 2019, Asian Universities Alliance (AUA) Award 2019, Iraqi Forum for Intellectuals and Academics Award (IFIA) 2019, TWAS-UNESCO Associateship (Twice) Award 2015 & 2012 and Best Paper Award at Global Conference on Energy and Sustainable Development in UK 2015, the total is 69 awards. He has almost 30 years’ experience of research, teaching, administrative and editorial board managing, organizing events, research grants and consultations, in addition to more than 759 publications currently including patents, books, chapters review, papers, articles and conferences and US$ 5M research grants. Al-Douri has citations = 7212, h-index = 43 and i10-index = 199 for the moment. He has graduated under his own supervision many of PhD and MSc students. Al-Douri is Associate Editor of Nano-Micro Letters (Springer-Q1), Editor-in-Chief of Experimental and Theoretical NANOTECHNOLOGY, Editor-in-Chief of World Journal of Nano Science and Engineering, Editor and Peer-reviewer of different international journals, member of different international scientific associations. His research field focuses on renewable energy, modelling and simulation, semiconductors, optical studies, nanoelectronics and nanomaterials.