3 papers
physics.app-ph2020
External control of GaN band bending using phosphonate self-assembled monolayers
T. Auzelle, F. Ullrich, S. Hietzschold +7
We report on the optoelectronic properties of GaN and surfaces after their functionalization with phosphonic acid derivatives. To analyze the possible correl…
cond-mat.mtrl-sci2020
Radius-Dependent Homogeneous Strain in Uncoalesced GaN Nanowires
G. Calabrese, D. van Treeck, V. M. Kaganer +6
We investigate the strain state of ensembles of thin and nearly coalescence-free self-assembled GaN nanowires prepared by plasma-assisted molecular beam epitaxy on Ti/AlO$_{3…
cond-mat.mes-hall2019
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…