Tungsten suboxide (WO3−x) petal-like nanosheets created by laser ablation method

Abstract

As a promising candidate in two-dimensional transition metal dichalcogenide (2D TMD), tungsten suboxide (WO[Formula: see text]) nanostructures are synthesized using pulsed laser ablation in liquid. The WO[Formula: see text] petal-like nanosheets were obtained by irradiating bulk WS2 in ethanol and distilled water using nanosecond (ns) laser ablation with the help of the second harmonic Nd:YAG laser. The synthesized WO[Formula: see text] petal-like nanosheets with uniform length up to 20 nm as per surface morphology were observed using field emission scanning electron microscopy (FESEM). The further characterization of the synthesized material was performed using UV-spectroscopy, energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD) spectroscopy, and Raman spectroscopy. EDS spectrum clearly suggests the formation of WO[Formula: see text]. This research on the findings of WO[Formula: see text] forecasts for the possible use of transition metal oxides-based nanostructures for numerous applications in optoelectronics and energy technologies.