Phosphorene Quantum Dots

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This Demonstration considers the atomic structure of single-layer and multilayer phosphorene quantum dots. It explores their shapes, crystallographic orientations and edge termination. You can generate irregular edge terminations modeled by random fractals for single-layer dots.

Contributed by: Vasil Saroka (February 2019)
Open content licensed under CC BY-NC-SA


Details

Multilayer phosphorene structures generated by the algorithm presented in this Demonstration have been studied in [1]. The single-layer structures including those with the random fractal edges modeling of the edge disorder have been studied in [2]. The model should be especially useful for quantum chemistry studies similar to [3]. The model presented here can be also useful for other two-dimensional, material-based quantum dots such as silicene or graphene [4, 5].

References

[1] H. Abdelsalam, V. A. Saroka, I. Lukyanchuk and M. E. Portnoi, "Multilayer Phosphorene Quantum Dots in an Electric Field: Energy Levels and Optical Absorption," Journal of Applied Physics, 124, 2018 124303. doi:10.1063/1.5048697.

[2] V. A. Saroka, I. Lukyanchuk, M. E. Portnoi and H. Abdelsalam, "Electro-optical Properties of Phosphorene Quantum Dots," Physical Review B, 96(8), 2017 085436. doi:10.1103/PhysRevB.96.085436.

[3] H. Abdelsalam, V. A. Saroka and W. O. Younis, "Phosphorene Quantum Dot Electronic Properties and Gas Sensing," Physica E: Low-Dimensional Systems and Nanostructures, 107, 2019 pp. 105–109. doi:10.1016/j.physe.2018.11.012.

[4] H. Abdelsalam, M. H. Talaat, I. Lukyanchuk, M. E. Portnoi and V. A. Saroka, "Electro-absorption of Silicene and Bilayer Graphene Quantum Dots," Journal of Applied Physics, 120(1), 2016 014304. doi:10.1063/1.4955222.

[5] H. Abdelsalam, V. A. Saroka, M. Ali, N. H. Teleb, H. Elhaes and M. A. Ibrahim, "Stability and Electronic Properties of Edge Functionalized Silicene Quantum Dots: A First Principles Study," Physica E: Low-Dimensional Systems and Nanostructures, 108, 2019 pp. 339–346. doi:10.1016/j.physe.2018.07.022.


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