Nonlinear Optical Properties of MoS_2 Nanostructures Synthesized by Using Natural Surfactant Extracts

摘要

A facile and environment-friendly bath sonication approach has been used to synthesize spherical and branch-like MoS_2 nanostructures by using commercial and natural surfactants, respectively. The excitonic peaks are clearly identified from the UV-Vis. absorption spectra. The synthesized leaf-like MoS_2 nanostructure has shown an excellent nonlinear behavior and the third order nonlinear refractive index i.e. n_2 has been found out to be 7.08 × 10~(-6) cm~2/W which is almost 1.5 times higher than that of the other synthesized sample. This study may provide a key method for large-scale production of spherical and branch-like MoS_2 nanostructures for potential applications in nonlinear optics.