Abstract Films of SiGe nanocrystals (NCs) in oxide have the advantage of tuning the energy band gap by adjusting SiGe NCs composition and size. In this study, SiGe-SiO2 amorphous …
Despite the vast knowledge accumulated on silicon, germanium, and their alloys, these materials still demand research, eminently in view of the improvement of knowledge on …
DB Hayrapetyan, EM Kazaryan… - Superlattices and …, 2013 - Elsevier
In this paper the electronic and hole states in three regimes of size quantization in spherical quantum dot with modified Pöschl–Teller potential made of GaAs are studied. Energy …
Unlike conventional opaque solar cells, semi‐transparent solar cells enable simultaneous electricity generation and light transmission. Along with solar energy harvesting, the offered …
Quantum confinement in closely packed arrays of Ge quantum dots (QDs) was studied for energy applications. In this work, we report an efficient tuning mechanism of the light …
H Meddeb, M Götz-Köhler, N Osterthun… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
Subwavelength optical nanocavity using semiconductor nanostructures is a key nanophotonic approach for various optoelectronic devices. In such low-dimensional …
S Cosentino, E Sungur Ozen, R Raciti… - Journal of Applied …, 2014 - pubs.aip.org
Germanium quantum dots (QDs) embedded in SiO 2 or in Si 3 N 4 have been studied for light harvesting purposes. SiGeO or SiGeN thin films, produced by plasma enhanced …
Experimental results obtained previously for the photoluminescence efficiency (PL eff) of Ge quantum dots (QDs) are theoretically studied. A log-log plot of PL eff versus QD diameter (D) …
M Laubscher, S Küfner, P Kroll… - Journal of Physics …, 2015 - iopscience.iop.org
We study amorphous Ge quantum dots embedded in a crystalline Si matrix through structure modeling and simulation using ab initio density functional theory including spin–orbit …