Electronic and Optical Properties of Rare Earth Atoms Doped Niobium Dichalcogenides NbX₂ (X=S, Se) Monolayers: A First Principle Study. LJSIR [Internet]. 7 juill. 2025 [cité 17 mai 2026];3(2):71-8. Disponible sur: https://lafiascijournals.org.ng/index.php/ljsir/article/view/548