[HTML][HTML] Effect of the AlAs cap** layer thickness on the structure of InAs/GaAs QD

N Ruiz-Marín, DF Reyes, L Stanojević, T Ben… - Applied Surface …, 2022 - Elsevier
Recently, very thin AlAs cap** layers (CLs) have been proposed as a useful tool to
increase the performance of InAs/GaAs quantum dot (QDs) devices. However, the structure …

Excitonic structure and pum** power dependent emission blue-shift of type-II quantum dots

P Klenovský, P Steindl, D Geffroy - Scientific Reports, 2017 - nature.com
In this work we study theoretically and experimentally the multi-particle structure of the so-
called type-II quantum dots with spatially separated electrons and holes. Our calculations …

Boosting the Self-Trapped Exciton Emission in Cs4SnBr6 Zero-Dimensional Perovskite via Rapid Heat Treatment

H Wu, Z Lin, J Song, Y Zhang, Y Guo, W Zhang… - Nanomaterials, 2023 - mdpi.com
Zero-dimensional (0D) tin halide perovskites feature extraordinary properties, such as
broadband emission, high photoluminescence quantum yield, and self-absorption-free …

Sb and N incorporation interplay in GaAsSbN/GaAs epilayers near lattice-matching condition for 1.0–1.16-eV photonic applications

V Braza, DF Reyes, A Gonzalo, AD Utrilla, T Ben… - Nanoscale research …, 2017 - Springer
As promising candidates for solar cell and photodetection applications in the range 1.0–1.16
eV, the growth of dilute nitride GaAsSbN alloys lattice matched to GaAs is studied. With this …

Strain-balanced type-II superlattices for efficient multi-junction solar cells

A Gonzalo, AD Utrilla, DF Reyes, V Braza, JM Llorens… - Scientific reports, 2017 - nature.com
Multi-junction solar cells made by assembling semiconductor materials with different
bandgap energies have hold the record conversion efficiencies for many years and are …

Excitonic fine structure splitting in type-II quantum dots

V Křápek, P Klenovský, T Šikola - Physical Review B, 2015 - APS
Excitonic fine structure splitting in quantum dots is closely related to the lateral shape of the
wave functions. We have studied theoretically the fine structure splitting in InAs quantum …

Optical response of (InGa)(AsSb)/GaAs quantum dots embedded in a GaP matrix

P Steindl, EM Sala, B Alén, DF Marrón, D Bimberg… - Physical Review B, 2019 - APS
The optical response of (InGa)(AsSb)/GaAs quantum dots (QDs) grown on GaP (001)
substrates is studied by means of excitation and temperature-dependent …

Polarization anisotropy of the emission from type-II quantum dots

P Klenovský, D Hemzal, P Steindl, M Zíkova, V Křápek… - Physical Review B, 2015 - APS
We study the polarization response of the emission from type-II GaAsSb capped InAs
quantum dots. The theoretical prediction based on the calculations of the overlap integrals of …

Influence of Sb/N contents during the cap** process on the morphology of InAs/GaAs quantum dots

D Gonzalez, DF Reyes, T Ben, AD Utrilla… - Solar Energy Materials …, 2016 - Elsevier
Abstract InAs/GaAs QDs are being investigated in the field of solar cells (SCs) with the aim of
achieving high SC performances. In order to control the band offsets and the accumulated …

Thin GaAsSb cap** layers for improved performance of InAs/GaAs quantum dot solar cells

AD Utrilla, DF Reyes, JM Llorens, I Artacho… - Solar Energy Materials …, 2017 - Elsevier
This work reports on the benefits from using thin GaAsSb cap** layers (CLs) on InAs/GaAs
quantum dot (QD) solar cells. The application of such CLs allows the tunability of the QD …