Studies on Layered Ternary Metal Chalcogenides: Electronic devices, Sensors and Electrocatalysis

Abstract

Atomically thin two-dimensional (2D) materials have gained tremendous interest since the discovery of graphene in 2004 due to their unique physical and chemical properties. They have been used in various research fields like catalysis, electronic devices, sensors, photonics, spintronics, valleytronics, energy conversion and storage devices. Research work on 2D materials have been focused on mostly single element systems such as graphene, phosphorene, and binary systems such as MoS2, WS2. Exploration of other 2D materials with novel properties are essential for various studies. Ternary 2D materials have attracted attention recently due to the degrees of freedom provided by extra element that gives rise to tunability in physical properties via composition variation leading to fascinating electronic, optoelectronic, sensing and electrocatalytic properties. In this direction, the present thesis explores the multi-functional aspects of new ternary 2D-layered materials based on metal phosphochalcogenides (MnPX3, X: S, Se) and transition metal mixed chalcogenides (MoSe2(1-x)Te2x).