Hossein Shirkani

Successful studies on 2D materials like graphene and hexagonal Boron Nitrid results in reintroduction of Black Phosphorus in the world of physics. Black Phosphorus is a layered material that each of its single layer named phosphorene. Because of its exclusive properties this material has a lot of importance in optoelectrical structures and construction of plasmonic tools. Because of its structure and exclusive properties, the purpose of this study is placed on trying to maximize phosphorene absorption in studied nanostructures.To achieve this goal, one dimentional photonic crystalline structures included phosphorene in the vicinity of different factors including presence of dielectric layer, metalic layer, graphene and hexagonal Boron Nitrid is considered and the effect of these layers and their geometric on phosphoreneabsorption rate and its spectral shift has been studied. To achieve this aim, Finite Element Method is used with help of Comsol software. By choosing suitable material for each part of the structure and controlling its geometrical parameters the absorption of phosphorene increased and anisotropic properties of phosphorene is obvious in these structures and phosphorene absorption rate for electromagnetic wave in armchair direction is more than zigzag direction. Because of anisotropic property of phosphorene, our proposed structures will open a way for plasmonic directional tools. Finally some structures are designed that phosphorene absorption rate is independent of incident angle and in the presence of other optical materials phosphorene absorption increases and a perfect absorber is designed that has high absorption in both armchair and zigzag direction.