Fabrication of WS₂ Thin Films via Spray Pyrolysis with Comprehensive Structural, Electrical, and Chemoresistive Analyses toward NO₂ Detection

Nanostructured metal sulphides are gaining attention as potential materials for resistive chemical sensors due to their high electrical conductivity and chemical stability compared to metal oxides. Among these, tungsten disulfide (WS₂), a transition metal dichalcogenide (TMD), stands out because of its distinctive electrical, optical, and mechanical properties. In this study, WS₂ thin films were…