Abstract:
The paper presents the results of femtosecond laser ablation and fragmentation of molybdenum disulfide and molybdenum oxide nanoparticles in ethanol and acetone. The photosensitized nanoparticles obtained were studied using scanning electron microscopy and Raman spectroscopy. The average size of nanoparticles after laser ablation was about 36 nm and 57 nm in ethanol and acetone, respectively. Laser fragmentation has made it possible to reduce the average size of nanoparticles in an ethanol solution to 20 nm, while sedimentation and oxidation of ablated nanoparticles are observed. Optical density spectra of solutions of MoO$_{3-x}$ and MoS$_2$ nanoparticles in ethanol and graphs of the dependence of temperature changes on irradiation time and transmitted radiation power on time are presented.
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