Single quantum dot nanolaser

S Strauf, F Jahnke - Laser & Photonics Reviews, 2011‏ - Wiley Online Library
Recent theoretical and experimental progress on nanolasers is reviewed with a focus on the
emission properties of devices operating with a few or even an individual semiconductor …

Interrelation of structural and electronic properties in quantum dots using an eight-band model

M Winkelnkemper, A Schliwa, D Bimberg - Physical Review B—Condensed …, 2006‏ - APS
We present an eight-band k∙ p-model for the calculation of the electronic structure of wurtzite
semiconductor quantum dots (QDs) and its application to indium gallium nitride (In x Ga 1− x …

Tight-binding model for semiconductor quantum dots with a wurtzite crystal structure: From one-particle properties to Coulomb correlations and optical spectra

S Schulz, S Schumacher, G Czycholl - Physical Review B—Condensed Matter …, 2006‏ - APS
In this work we investigate the electronic and optical properties of self-assembled quantum
dots by means of a tight-binding model. Coulomb and dipole matrix elements are calculated …

Atomistic analysis of Auger recombination in -plane (In,Ga)N/GaN quantum wells: Temperature-dependent competition between radiative and nonradiative …

JM McMahon, E Kioupakis, S Schulz - Physical Review B, 2022‏ - APS
We present an atomistic theoretical study of the temperature dependence of the competition
between Auger and radiative recombination in c-plane (In, Ga) N/GaN quantum wells with …

Photophysics of graphene quantum dots: Insights from electronic structure calculations

S Schumacher - Physical Review B—Condensed Matter and Materials …, 2011‏ - APS
Understanding electronic excitations in graphene nanostructures plays a crucial role in
utilizing these recently emerging systems in optoelectronics and photonics. Based on time …

Comparison of atomistic and continuum theoretical approaches to determine electronic properties of GaN/AlN quantum dots

O Marquardt, D Mourad, S Schulz, T Hickel… - Physical Review B …, 2008‏ - APS
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 the …

Luminescence of a semiconductor quantum dot system

N Baer, C Gies, J Wiersig, F Jahnke - The European Physical Journal B …, 2006‏ - Springer
A microscopic theory is used to study photoluminescence of semiconductor quantum dots
under the influence of Coulomb and carrier-photon correlation effects beyond the Hartree …

Built-in field control in alloyed c-plane III-N quantum dots and wells

MA Caro, S Schulz, SB Healy, EP O'Reilly - Journal of Applied Physics, 2011‏ - pubs.aip.org
We investigate the degree to which the built-in electric field can be suppressed by
employing polarization-matched barriers in III-N quantum well and dot structures grown …

Influence of symmetry and Coulomb correlation effects on the optical properties of nitride quantum dots

N Baer, S Schulz, P Gartner, S Schumacher… - Physical Review B …, 2007‏ - APS
The electronic and optical properties of self-assembled In N∕ Ga N quantum dots (QDs) are
investigated by means of a tight-binding model combined with configuration-interaction …

Impact of local composition on the emission spectra of InGaN quantum-dot LEDs

D Barettin, AV Sakharov, AF Tsatsulnikov, AE Nikolaev… - Nanomaterials, 2023‏ - mdpi.com
A possible solution for the realization of high-efficiency visible light-emitting diodes (LEDs)
exploits InGaN-quantum-dot-based active regions. However, the role of local composition …