Messaoud Tamin is a Ph.D. student in materials physics and physical chemistry, obtained a B.Sc. diploma in fundamental physics in 2018 and a M.Sc. in materials physics in 2020 from the University of Ferhat Abbas Sétif 1 (UFAS), Algeria. His MSc project focused on cadmium-free buffer layers for kesterite solar cells in collaboration with the Interdisciplinary Carnot Laboratory, Dijon, France. Since 2022, he pursued a joint PhD program (cotutelle) between UFAS (Algeria) and the University of Bourgogne Europe, France. His thesis focuses on wide-bandgap chalcogenide semiconductors for advanced photovoltaic applications. Work Experience: Supported by the AUF Eugen Ionescu program (2024), CIFRA/ICTP mobility (2025), and the RENEW-PV COST Action (2025), he completed several international research stays as a visiting junior researcher at National Institute of Materials Physics (NIMP),Romania, rejoining the institute in February 2026 as Junior Researcher. He is also member of CA21148 - Research and International Networking on Emerging Inorganic Chalcogenides for Photovoltaics (RENEW-PV). Main areas of interest and expertise: solution-processed chalcogenide thin-film deposition; fabrication of thin-film solar cells; annealing and sulfurization under controlled atmospheres; and structural, optical, and electrical characterization using UV-Vis spectroscopy, Raman spectroscopy, and photovoltaic J-V and EQE measurements, together with advanced data analysis. Professional profile web-links: Brainmap: https://www.brainmap.ro/messaoud-tamin , ORCID ID: 0009-0008-7713-9285 ; WoS ResearcherID: OPM-6904-2025 .