Multicarrier dynamics in quantum dots

C Melnychuk, P Guyot-Sionnest - Chemical Reviews, 2021 - ACS Publications
Multicarrier dynamics play an essential role in quantum dot photophysics and
photochemistry, and they are primarily governed by nonradiative Auger processes. Auger …

Spin-orbit coupling and magnetic-field dependence of carrier states in a self-assembled quantum dot

K Gawarecki - Physical Review B, 2018 - APS
In this work, we investigate the influence of spin-orbit coupling on the magnetic-field
dependence of carrier states in a self-assembled quantum dot. The electron and hole …

Dominant role of the shear strain induced admixture in spin-flip processes in self-assembled quantum dots

A Mielnik-Pyszczorski, K Gawarecki, M Gawełczyk… - Physical Review B, 2018 - APS
We study theoretically the spin-flip relaxation processes for a single electron in a self-
assembled InAs/GaAs quantum dot, and we show that the dominant channel is the spin …

[HTML][HTML] Efficiency enhancement through flat intermediate band in Quantum dot solar cell

A Imran, J Jiang, D Eric, MN Zahid, M Yousaf… - Results in Physics, 2018 - Elsevier
Quantum dots (QD) are playing a vital role due to their multifunctionality such as small size
and tuning the range of band and have achieved a considerable attention in the recent …

Electron g-factor in nanostructures: continuum media and atomistic approach

K Gawarecki, M Zieliński - Scientific Reports, 2020 - nature.com
We report studies of k-dependent Landé g-factor, performed by both continuous media
approximation k· p method, and atomistic tight-binding sp 3 d 5 s∗ approach. We propose …

Invariant expansion of the 30-band model and its parameters for III-V compounds

K Gawarecki, P Scharoch, M Wiśniewski, J Ziembicki… - Physical Review B, 2022 - APS
In this paper, we derive a ready-to-use symmetry-invariant expansion of the full-zone 30-
band k· p Hamiltonian for the T d point group. To find respective parameters, the band …

[HTML][HTML] Electronic and spectral properties of Ge1− xSnx quantum dots

K Gawarecki, J Ziembicki, P Scharoch… - Journal of Applied …, 2024 - pubs.aip.org
In this paper, we study theoretically the electron and spectral properties of Ge 1− x Sn x
systems, including alloys, cubic-and spherical quantum dots. The single-particle electron …

Electronic and optical properties of an off-centre donor impurity in a WZ ZnS/ZnO/ZnS multishell spherical quantum dot

M El Khou, EA Ibnouelghazi, D Abouelaoualim - Pramana, 2022 - Springer
In this study, a detailed investigation was done on the effects of changing the position of a
donor impurity on the electronic and optical properties of an electron confined within a fixed …

Electron ground state factor in embedded InGaAs quantum dots: An atomistic study

M Kahraman, C Bulutay - Physical Review B, 2021 - APS
We present atomistic computations within an empirical pseudopotential framework for the
electron s-shell ground state g tensor of InGaAs quantum dots (QDs) embedded to host …

Influence of impurities on structural, electronic and optical properties of graphene-like nano-layers MoSe2

F Lahourpour, A Boochani, SS Parhizgar… - Materials Research …, 2019 - iopscience.iop.org
In this study, using the calculations of the first principle, the effects of metal impurities of Cr
and Mn with different impurities percentages are investigated on the structural, electronic …