EFFECTS OF QUANTUM-SIZE AND POTENTIAL SHAPE ON THE SPECTRA OF AN ELECTRON AND A DONOR IN QUANTUM DOTS

Spectra of electron and donor states in quantum dots with different co nfinement potentials are calculated. The potential-shape, quantum-size , and donor-position effects on the level ordering and binding are stu died in detail. It is found that a single donor can heavily change sin gle-electron spectra in the quantum dots with proper size and potentia l shape, which may be useful for understanding physical phenomena and designing materials and devices in quantum-dot structures.