Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7943486 | Superlattices and Microstructures | 2013 | 9 Pages |
Abstract
The binding energies of 1s-, 2p-, 3d- and 4f-states of a spherical quantum dot (QD) with parabolic potential are investigated by using the perturbation method. The binding energies are calculated as a function of impurity position. The results show that the dot radius and the parabolic potential have a great effect on the binding energies and there is a linear relationship between the dot radius and impurity shift corresponding to the binding energy maximum. In addition, the binding energies show a strong dependence on the impurity position within the dot. While the binding energies for s-state have the maxima for an on-center impurity case, the binding energy maxima of the p-, d- and f-states take place at different points between the center and edge of the dot.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Yusuf Yakar, Bekir Ãakır, Ayhan Ãzmen,