activity
20042024
most citedX-ray diffraction peak profiles from threading dislocations in GaN epitaxial films

224 citations · 2.3k across the 66 of their papers we have counts for

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Showing 2019Show all

6 papers · 1 filter

cond-mat.mtrl-sci2019★ 6 cited

Self-assembly of well-separated AlN nanowires directly on sputtered metallic TiN films

Mani Azadmand, Tomas Auzelle, Jonas Lähnemann +7

We demonstrate the self-assembled formation of AlN nanowires by molecular beam epitaxy on sputtered TiN films on sapphire. This choice of substrate allows growth at an exceptionall…

physics.app-ph2019★ 10 cited

Electroluminescence and current-voltage measurements of single (In,Ga)N/GaN nanowire light-emitting diodes in the nanowire ensemble

David van Treeck, Johannes Ledig, Gregor Scholz +7

We present the combined analysis of the electroluminescence (EL) as well as the current-voltage (I-V) behavior of single, freestanding (In,Ga)N/GaN nanowire (NW) light-emitting dio…

cond-mat.mtrl-sci2019★ 19 cited

Coaxial GaAs/(In,Ga)As dot-in-a-well nanowire heterostructures for electrically driven infrared light generation on Si in the telecommunication O band

Jesús Herranz, Pierre Corfdir, Esperanza Luna +8

Core-shell GaAs-based nanowires monolithically integrated on Si constitute a promising class of nanostructures that could enable light emitters for fast inter- and intrachip optica…

cond-mat.mtrl-sci2019★ 28 cited

Determination of the carrier diffusion length in GaN from cathodoluminescence maps around threading dislocations: fallacies and opportunities

Vladimir M. Kaganer, Jonas Lähnemann, Carsten Pfüller +3

We investigate, both theoretically and experimentally, the drift, diffusion, and recombination of excitons in the strain field of an edge threading dislocation intersecting the GaN…

physics.app-ph2019★ 29 cited

Top-down fabrication of ordered arrays of GaN nanowires by selective area sublimation

Sergio Fernández-Garrido, Thomas Auzelle, Jonas Lähnemann +3

We demonstrate the top-down fabrication of ordered arrays of GaN nanowires by selective area sublimation of pre-patterned GaN(0001) layers grown by hydride vapor phase epitaxy on A…

cond-mat.mes-hall2019★ 8 cited

Absence of quantum-confined Stark effect in GaN quantum disks embedded in (Al,Ga)N nanowires grown by molecular beam epitaxy

C. Sinito, P. Corfdir, C. Pfüller +14

Several of the key issues of planar (Al,Ga)N-based deep-ultraviolet light emitting diodes could potentially be overcome by utilizing nanowire heterostructures, exhibiting high stru…