Characterization and optical gas sensing properties of BaSnO3 synthesized by novel technique: flame spray pyrolysis

Barium stannate (BaSnO3) particles were synthesized using a one-step flame spray pyrolysis (FSP) method. The fabricated ceramic powders investigated in terms of the structural, morphological, and optical properties by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), photoelectron (XPS), scanning electron microscopy (SEM), zeta particle size analyzer, UV–Visible (UV–Vis) photoluminescence (PL). XRD results showed structure BaSnO3 crystals has been obtained when exposed at high temperatures, specifically 1200 °C. submicron range 70–980 nm produced. bandgap value was calculated reflectance spectra with Kubelka–Munk method found as 3.14 eV. When excited 375 nm, they exhibited emission bands visible near-infrared region (NIR) electromagnetic spectrum. In this study, intensity- decay time-based gas sensing nanoscale embedded ethyl cellulose (EC) thin films to vapors different solvents also measured. sensitivities (I-I0/I0) materials for NH3, acetone, EtOH solvent 0.835, 0.672, 0.521, respectively.