Fabrication of 2-D Nanosheets of NbSe₂ via Liquid Phase Exfoliation and Their Morphological, Structural, and Optical Characterization

Abstract

The present work is on the synthesis and investigation of the structural, optical, and optoelectrical properties of NbSe2 as an efficient material for energy conversion applications. The liquid phase exfoliation method was employed for the synthesis of 2D nanosheets from the bulk NbSe2 at different exfoliation levels. SEM was used to confirm the physical dimensions of the nanosheets, while XRD was used to verify the structural retention of hexagonal nanosheets. The results demonstrate that high-quality, single-crystalline NbSe2 nanosheets with a size of ≈1 μm in the lateral dimension and ≈6–12 nm thick were obtained. The 2D nanosheets will be further explored for energy storage and conversion applications.

Keywords

• 2D transition metal dichalcogenides
• liquid exfoliation method