Size-dependent Electronic and Polarization Properties of Multi-Layer InAs Quantum Dot Molecules

Abstract

In this chapter, we analyze the polarization response of multi-layer quantum dot molecules (QDMs) containing up to nine vertically stacked quantum dot layers by carrying out a systematic set of multi-million atom simulations. The atomistic modeling and simulations allow us to include correct symmetry properties in the calculations of the electronic and optical spectra: a factor critical to explain the experimental evidence. The values of the degree of polarization (DOP) calculated from our model based on the geometry parameters directly extracted from the experimental TEM images follow the trends of the recently published experimental data. We also present detailed physical insight of the fu..