Optical Properties of Non-Hexagonal S-Graphene: The Role of Exchange Magnetic Fields and Hole/Electron Doping

Theoretical perspective on the electronic, magnetic and thermodynamic properties of T-graphene: the tight-binding approach

“…Also, the small bandgap of graphene is a disorder that makes graphene appear less colorful in the electronics and nanoelectronics industry 6 .On the other hand, the very successful synthesis of graphene showed new experimental and theoretical perspectives for research on graphene transformations and new research.2D structures such as graphene, germanene 7 , and silicene 8 exhibit a linear dispersion relation near the Fermi level. Previous investigations believed that the honeycomb lattice was required to create Dirac cones.But new scienti c attitudes and studies evaluated the development of Dirac cones in new 2D structures, which rejected the existence of Dirac cones just in honeycomb lattices 9 .Therefore, new ndings showed that allotropes [10][11][12][13] such as E-graphene, Tgraphene, S-graphene, graphyne, D-graphene, etc. with non-hexagonal lattices have SP 2 hybridization and are thermodynamically stable, as well as the condition of existence satisfy the Dirac cones.T-graphene or tetragonal with high Fermi velocity and unique mechanical properties as well as special potential in hydrogen storage has attracted special attention.Studies on the electronic, geometrical, and physical properties of T-graphene show that this form of carbon with low density, outstanding intrinsic electronic properties, and unique structural stability is a very suitable candidate for use in making electrodes, photocatalysts [14][15][16][17] , etc.…”