62 citations · 518 across the 28 of their papers we have counts for
8 papers · 1 filter
Non-invasive control of excitons in two-dimensional materials
Christina Steinke, Daniel Mourad, Malte Rösner +5
We investigate how external screening shapes excitons in two-dimensional (2d) semiconductors embedded in laterally structured dielectric environments. An atomic scale view of these…
Determination of the Fermi Level Position in Dilute Magnetic GaMnN Films
Stefan Barthel, Gerd Kunert, Mariuca Gartner +6
We report on a combined theoretical and experimental determination of the Fermi level position in wurtzite GaMnN films with and as grown by molecular…
Quantum-Confined Stark Effect in polar and nonpolar Wurtzite InN/GaN Heterostructures: Influence on Electronic Structure and Compensation by Coulomb Attraction
Stefan Barthel, Kolja Schuh, Oliver Marquardt +4
In this paper we systematically analyze the electronic structures of polar and nonpolar wurtzite-InN/GaN quantum dots and their modification due to the quantum-confined Stark effec…
Theory of band gap bowing of disordered substitutional II-VI and III-V semiconductor alloys
Daniel Mourad, Gerd Czycholl
For a wide class of technologically relevant compound III-V and II-VI semiconductor materials AC and BC mixed crystals (alloys) of the type A(x)B(1-x)C can be realized. As the elec…
Band gap bowing of binary alloys: Experimental results compared to theoretical tight-binding supercell calculations for CdZnSe
Daniel Mourad, Carsten Kruse, Sebastian Klembt +5
Compound semiconductor alloys of the type ABC find widespread applications as their electronic bulk band gap varies continuously with x, and therefore a tayloring of the energy gap…
A comparison of atomistic and continuum theoretical approaches to determine electronic properties of GaN/AlN quantum dots
Oliver Marquardt, Daniel Mourad, Stefan Schulz +3
In this work we present a comparison of multiband k.p-models, the effective bond-orbital approach, and an empirical tight-binding model to calculate the electronic structure for th…