Interaction of hydrated metals with chemically modified hexagonal boron nitride quantum dots: wastewater treatment and water splitting

H Abdelsalam, WO Younis, VA Saroka… - Physical Chemistry …, 2020 - pubs.rsc.org
The electronic and adsorption properties of chemically modified square hexagonal boron
nitride quantum dots are investigated using density functional theory calculations. The free …

Circular quantum dots in twisted bilayer graphene

M Mirzakhani, FM Peeters, M Zarenia - Physical Review B, 2020 - APS
Within a tight-binding approach, we investigate the effect of twisting angle on the energy
levels of circular bilayer graphene (BLG) quantum dots (QDs) in both the absence and …

Opto-electronic properties of twisted bilayer graphene quantum dots

A Tiutiunnyk, CA Duque, FJ Caro-Lopera… - Physica E: Low …, 2019 - Elsevier
The electronic and interband optical properties of vertically coupled stacked graphene
quantum dots are investigated using the tight-binding method. Both zigzag and armchair …

Exploring the potential of chemically modified graphyne nanodots as an efficient adsorbent and sensitive detector of environmental contaminants: a first principles …

MAS Sakr, MA Saad, VA Saroka, H Abdelsalam… - Journal of …, 2024 - Springer
In this study, we investigated the reactivity of γ-graphyne (Gp) and its derivatives, Gp-CH3,
Gp-COOH, Gp-CN, Gp-NO2, and Gp-SOH, for the removal of toxic heavy metal ions (Hg+ 2 …

Energy levels of hybrid monolayer-bilayer graphene quantum dots

M Mirzakhani, M Zarenia, SA Ketabi, DR Da Costa… - Physical Review B, 2016 - APS
Often real samples of graphene consist of islands of both monolayer and bilayer graphene.
Bound states in such hybrid quantum dots are investigated for (i) a circular single-layer …

Electro-absorption of silicene and bilayer graphene quantum dots

H Abdelsalam, MH Talaat, I Lukyanchuk… - Journal of Applied …, 2016 - pubs.aip.org
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 …

Valley current generation using biased bilayer graphene dots

F Solomon, SR Power - Physical Review B, 2021 - APS
Intrinsic and extrinsic valley Hall effects are predicted to emerge in graphene systems with
uniform or spatially varying mass terms. Extrinsic mechanisms, mediated by the valley …

A strain-engineered graphene qubit in a nanobubble

HC Park, JY Han, N Myoung - Quantum Science and Technology, 2023 - iopscience.iop.org
We propose a controllable qubit in a graphene nanobubble (NB) with emergent two-level
systems (TLSs) induced by pseudo-magnetic fields (PMFs). We found that double quantum …

Isolated and hybrid bilayer graphene quantum rings

M Mirzakhani, DR da Costa, FM Peeters - Physical Review B, 2022 - APS
Using the continuum model, we investigate the electronic properties of two types of bilayer
graphene (BLG) quantum ring (QR) geometries:(i) An isolated BLG QR and (ii) a monolayer …

Scattering of topological kink-antikink states in bilayer graphene structures

N Benchtaber, D Sánchez, L Serra - Physical Review B, 2021 - APS
Gapped bilayer graphene can support the presence of intragap states due to kink gate
potentials applied to the graphene layers. Electrons in these states display valley …