Electronic properties and hydrogenic impurity binding energy of a new variant quantum dot

Analyzing Time‐Average Excitation Rate Among Quantum Dot Eigenstates Triggered by Time‐Dependent Noise Strength

“…These properties can be tuned externally thereby making QDs immensely valuable components of technologically advanced devices. As a result, we frequently find research works that analyze various aspects of the low‐dimensional nanosystems, [ 1–8 ] particularly emphasizing their nonlinear optical (NLO) responses. [ 9–30 ]…”

“…Consequently, studies delving into the impurity effects in QD and other low‐dimensional nanosystems are found to be quite abundant. [ 1–3,5–8,11,15,17,22,25,27–30 ]…”

First Study on the Electronic and Donor Atom Properties of the Ultra-Thin Nanoflakes Quantum Dots

“…This behavior can be described as follows: ( i ) the symmetry of the atomic orbitals is limited to the corner and ( ii ) the probability density spreads near from the donor position. The augmentation of the binding energy with the augmentation of the nanostructures aperture when the impurity is localized in the corner, which is discussed in the previous works [ 32 , 33 ]. We can also see from Figure 7 b that the maximum value of the binding energy will be moved from the center ( ) when the polar angle is not complete , since the system does not keep its symmetry and the maximum value increases when the polar angle decreases.…”

“…In the past thirty years, scientists have paid considerable attention to the shape of the nanostructures, which is one of the most important factors to study the different properties of QD. In-depth researchers have been interested in spherical, cylindrical, and core/shell QD under external perturbation such as hydrostatic pressure, temperature, and electric and magnetic field [ 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ]. It is important to note that the optical properties associated with off-center hydrogenic impurity states confined in cylindrical QD with various electric and magnetic fields directions have been reported by Heyn and Duque [ 30 ].…”

“…More recently, the -azimuthal angle effect, which produces systems of different geometry, on the electronic and optical properties of cylindrical and spherical nanostructures become the subject of many studies [ 32 , 33 ]. For the -azimuthal angle effect of cylindrical QD, we have recently obtained that [ 32 ]: ( i ) the optical bandgap depends strongly on the QD radius and its azimuthal angle, ( ii ) the geometric parameters , the presence of impurity, and their positions in the rectangular base surface have a very important effect on the binding energy, ( iii ) the binding energy takes a critical value when the angle of the dot is almost equal to and takes the values of a 2D-QD when the opening angle tends towards . Instead, the conduction band energy state properties of an electron interacting with donor impurity centers in a spherical segment (conical) GaAs/Al Ga As QDs have been theoretically studied [ 33 ].…”