Modeling and Experimenting with 2D Materials for CMOS Type Devices and Digital Integrated Circuits

Two-dimensional transition metal dichalcogenides (2D-TMDs) have been proposed as novel optoelectronic materials for space applications due to their relatively light weight. MoS2 has been shown to have excellent semiconducting and photonic properties. Here, we report the effect of gamma irradiation on the structural and optical properties of a monolayer of MoS2.

Louisiana State University, Baton Rouge, Louisiana

Graphene is a two-dimensional carbon material made of carbon by covalent bonds, where carbon atoms are arranged in a honeycomb lattice. Graphene has promising electronic and mechanical properties. There are many processes available for the formation of the graphene. CVD (Chemical Vapor Deposition) process for the formation of graphene over the metal surface is most compatible. Graphene is being investigated for its application in space electronics. In space, there are many irradiation particles and waves like x-rays, gamma rays, alpha particles, and beta particles. Single particle like neutron can create single event upset in electronic devices. Graphene can work as a radiation shielding material. Graphene-metal, graphene and epsilon near zero metamaterials structure can be used for electromagnetic wave absorbent.

Graphene/polymer, graphene/composite, graphene/epoxy composite material can work as an electromagnetic interface shielding material. Monolayer graphene may be used for electromagnetic interface shielding. Graphene and its derivatives can be used in biomedical applications like cancer imaging, and cancer targeting with appropriate surface engineering done on graphene. Graphene-Schottky junctions can work as low-bias radiation sensor. Since graphene is a potential material to be used in electronic devices, and radiation shielding applications, it is important to study graphene in the irradiation environment. Effects of e-beam irradiation on CVD grown graphene have been also studied.