38 citations · 104 across the 10 of their papers we have counts for
10 papers
Exploiting of flux shadowing effect on InGaAs asymmetric shell growth for strain and bending engineering in GaAs - InGaAs core - shell NW arrays
Mahmoud Al Humaidi, Julian Jakob, Ali Al Hassan +8
Here we report on non-uniform shell growth of In(x)Ga(1-x)As onto GaAs nanowire (NW) core by molecular beam epitaxy (MBE). The growth was realized on pre-patterned silicon substrat…
In-situ X-ray analysis of misfit strain and curvature of bent polytypic GaAs-In(x)Ga(1-x)As core-shell nanowires
Mahmoud Al-Humaidi, Ludwig Feigl, Julian Jakob +9
Misfit strain in core-shell nanowires can be elastically released by nanowire bending in case of asymmetric shell growth around the nanowire core. In this work, we investigate the…
Beam damage of single semiconductor nanowires during X-ray nano beam diffraction experiments
Ali AlHassan, Jonas Lähnemann, Arman Davtyan +8
Nanoprobe X-ray diffraction (nXRD) using focused synchrotron radiation is a powerful technique to study the structural properties of individual semiconductor nanowires. However, wh…
Spatially-resolved luminescence and crystal structure of single core-shell nanowires measured in the as-grown geometry
Ali AlHassan, Jonas Lähnemann, Steven Leake +9
We report on the direct correlation between the structural and optical properties of single, as-grown core-multi-shell GaAs/InGaAs/GaAs/AlAs/GaAs nanowires. Fabri…
Correlated nanoscale analysis of the emission from wurtzite versus zincblende (In,Ga)As/GaAs nanowire core-shell quantum wells
Jonas Lähnemann, Megan O. Hill, Jesús Herranz +12
While the properties of wurtzite GaAs have been extensively studied during the past decade, little is known about the influence of the crystal polytype on ternary (In,Ga)As quantum…
Artificial piezoelectricity in centrosymmetric SrTiO3
B. Khanbabaee, E. Mehner, C. Richter +7
Defect engineering is an effective and powerful tool to control existing material properties and create completely new ones, which are symmetry-forbidden in a defect-free crystal.…