Fig. 1

Strongly flattened ellipsoidal QD: (a) realization of the strong quantum confinement regime, when the condition \(a_{ex} > > a > > c\) holds, and the motions of an electron and a hole are quantized separately, (b) realization of the weak quantum confinement regime, when the condition \(c > > a_{ex}\) holds, and the motion of a 3D exciton is quantized, (c) realization of the intermediate quantum confinement regime, when the condition \(a > > a_{ex} > > c\) holds, and the motion of a 2D exciton is quantized