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5 papers · 1 filter
Topological junction states in graphene nanoribbons: A route to topological chemistry
Hazem Abdelsalam, Domenico Corona, Renebeth B. Payod +4
Two-dimensional topological insulators with propagating topological edge states are promising for dissipationless transport, while their one-dimensional analogs are capable of host…
Phosphorene quantum dot electronic properties and gas sensing
Hazem Abdelsalam, Vasil A. Saroka, Waleed O. Younis
Density functional theory calculations are performed on phosphorene quantum dots having different shapes and edge terminations to investigate their structure stability, electronic…
Tuning electronic properties in graphene quantum dots by chemical functionalization: Density functional theory calculations
Hazem Abdelsalam, Hanan Elhaes, Medhat A. Ibrahim
The electronic energy gap and total dipole moment of chemically functionalized hexagonal and triangular graphene quantum dots are investigated by the density functional theory. It…
First principles study of edge carboxylated graphene quantum dots
Hazem Abdelsalam, Hanan Elhaes, Medhat A. Ibrahim
The structure stability and electronic properties of edge carboxylated hexagonal and triangular graphene quantum dots are investigated by using density functional theory. The calcu…
Electro-absorption of silicene and bilayer graphene quantum dots
H. Abdelsalam, M. H. Talaat, I. Lukyanchuk +2
We study numerically the optical properties of low-buckled silicene and AB-stacked bilayer graphene quantum dots subjected to an external electric field, which is normal to their s…