Aqueous and Non- aqueous dispersions of MoS2 Nanosheets

Abstract

The focus of this thesis is an attempt to provide a molecular perspective of the interactions of solvent and ligand molecules with sonication assisted exfoliated MoS2 nanosheets in aqueous and non-aqueous dispersions. In this thesis both experimental measurements, notably transmission electron microscopy (TEM) and NMR spectroscopy, and molecular dynamics (MD) computer simulations have been used. This thesis consists of six chapters of which, Chapter 2 provides details of the experimental procedures and techniques as well as the classical MD simulation methodologies employed in this study. Transmission electron microscopy is critical to the present study. The in-layer structure of the nanosheets obtained was examined in greater detail from the phase corrected image reconstructed from a series of images recorded at different defocus values. Details of the exit-wave reconstruction procedure are included as an appendix to this chapter.