Figure 3

Simulation of the band structure using a 1D Poisson solver (Snider Poisson-Solver:http://www.nd.edu/∼gsnider/). The solid lines display the band structure for uncharged QDs while dotted lines refer to a situation where the QDs are charged with six electrons for a QD area density of 8.3 × 10⁹ cm⁻². The blue lines show the electron concentration within the 2DEG per cm⁻³