Morphological analysis of Tungsten Diselenide Nanosheet for Optoelectronic Applications

Abstract

Tungsten diselenide (WSe2) nanosheets have become a potential material for optoelectronic applications because of its special electrical and optical characteristics. The structural characterizations of WSe2 nanosheets produced by the hydrothermal technique is the main objective of this work. The distribution of nanoparticles, surface shape, and chemical bonding were examined using Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The effective fabrication of WSe2 nanosheets with an average particle size of around 60 nm was verified by SEM examination. The material's purity was confirmed by FTIR spectra, which showed distinctive peaks connected to W-Se, W-O-W, and hydroxyl groups. The results show that WSe2 nanosheets have favorable structural characteristics for possible use in optoelectronic devices such solar cells, light-emitting diodes, and photo detectors.