Donor Atom Properties in 2D Ultra-Thin Cylindrical Quantum Dots

Abstract

The objective of this work is to study theoretically the ground state energy of a donor atom located in a two-dimensional ultra-thin cylindrical nanostructure called nanoflakes for different geometries controlled by the three geometrical parameters, in an infinite confinement potential. The solution of our equations system is based on the 2D finite difference method. Our numerical calculations show that the ground state energy of a donor atom is more important in the small area of the nanoflakes. Moreover, beyond the critical regions, the donor energy becomes stable.

Unbound Excitonic Properties in a Multilayered Quantum Dot under Hydrostatic Pressure and Temperature

“…The semiconductor nanostructures known as quantum dots (QDs), which can confine electrons at the nanoscale scale in all directions of space. Thus, QDs may be thought of as synthetic atoms with discrete energy levels for electrons, which are the subject of several investigations today [1][2][3][4]. As we know, there are researches on excitons confined in quantum dots of different geometries.…”