Optical and structural properties of H-BN@Gd2O3 nanoflake prepared by laser-induced ablation in liquid

In this paper, we reported the synthesis of hexagonal BN, Gd2O3 nanoparticles, and BN@Gd2O3 hybrid nanocomposites by novel laser ablation in liquid. Several analytical techniques including x-ray diffraction (XRD), UV-vis spectroscopy, Fluorescence spectroscopy, Field Emission Scanning electron Microscopy (FE-SEM) with Energy dispersive spectroscopy (EDS), High-resolution transmission electron microscope (HR-TEM), and map imaging were used to investigate the structural and optical properties of synthesized nanoparticles. According to FE-SEM and TEM results, FE-SEM images show the formation of h-BN NPs, sheet-like, and spherical nanoparticles, hexagonal-type nanoflake of Gd2O3, and needle-like shapes. High-resolution transmission electron microscopy images confirm that the average diameter of all samples is similar to 40 nm. However, the length of the nanorods is found to vary from 50 nm to 240 nm. The optical properties studies show that the optical energy gap of h-BN, Gd2O3, and h-BN@Gd2O3 is in the range of (4.5-5.5) eV.

Automated summary

In this paper, hexagonal BN, Gd2O3 nanoparticles, and BN@Gd2O3 hybrid nanocomposites were synthesized by novel laser ablation in liquid. Various analytical techniques were used to investigate their structural and optical properties. The results showed the formation of h-BN NPs, sheet-like and spherical nanoparticles, hexagonal-type nanoflake of Gd2O3, and needle-like shapes. The optical energy gap of h-BN, Gd2O3, and h-BN@Gd2O3 was found to be in the range of (4.5-5.5) eV.