Abstract
Abstract In this study, we used a top-down approach to fabricate 2D SnSe nanosheets via the liquid phase exfoliation (LPE) technique. Bulk SnSe was dispersed in six different solvents: isopropyl alcohol (IPA), absolute ethanol, N-Methyl-2-pyrrolidone (NMP), acetone, methanol, and deionized (DI) water. The solutions containing bulk SnSe were ultrasonicated and subjected to high-speed centrifugation. Comprehensive characterization of both the bulk and exfoliated samples was conducted using various techniques. X-ray diffraction (XRD) analysis confirmed the orthorhombic crystal structure of bulk SnSe. Raman spectroscopy was used to examine the vibrational properties of both bulk and exfoliated SnSe, showing distinct B 3g and A g 3 modes at ~115.6 and 150 cm−1, respectively. Morphological analysis using both Field Emission Scanning Electron Microscopy (FESEM) and Transmission Electron Microscopy (TEM) revealed the formation of few-layer nanosheets. Additionally, UV-visible spectroscopy was employed to investigate the optical properties and the stability of the exfoliated SnSe nanosheets.
Published Version
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