Synthesis and Photonic Properties of WO₃-Reduced Graphene Oxide Nanocomposites.

Abstract This manuscript explores the synthesis and characterization of tungsten trioxide (WO 3 ) nanoparticles and their nanocomposites with reduced graphene oxide (rGO) via an in situ hydrothermal method. Through systematic investigation of WO 3 -rGO nanocomposites with varying weight ratios, denoted as WO 3 -rGO3%, WO 3 -rGO7%, and WO 3 -rGO15. X-ray diffraction and Raman spectroscopy confirm the crystallinity of WO 3 and the successful integration of rGO. Transmission electron microscopy reveals well-dispersed WO 3 nanoparticles on rGO sheets, and diffuse reflectance spectroscopy indicates a slight reduction in the band gap energy for WO 3 -rGO nanocomposites. Fluorescence emission spectra exhibit significant quenching, suggesting enhanced interfacial contact between WO 3 particles and rGO nanosheets. These findings underscore the potential of WO 3 -rGO nanocomposites for diverse applications, positioning them as promising candidates in the burgeoning field of advanced composite nanomaterials.