Exploration of exciton stability in low dimensional systems

Abstract

Due to decreased dielectric screening and increased Coulombic interactions, two-dimensional (2D) materials display pronounced excitonic effects. These effects alter the way these materials absorb light and respond to optoelectronic processes, even under normal room temperature conditions. Using first-principles calculations I redid the DFT calculations of bulk material and Monolayer as well as Bilayer of Graphene and GaN which will help me in further demonstrating the excitonic phenomena of Monolayer GaN that will lead to studying the stability of excitons in the 2d materials.