29 citations · 29 across the 1 of their papers we have counts for
7 papers
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…
Enhanced radiative efficiency in GaN nanowires grown on sputtered TiN: effects of surface electric fields
T. Auzelle, M. Azadmand, T. Flissikowski +8
GaN nanowires grown by molecular beam epitaxy generally suffer from dominant nonradiative recombination, which is believed to originate from point defects. To suppress the formatio…
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…
Toward Quantitative Measurements of Piezoelectricity in III-N Semiconductors Nanowires
L. Jaloustre, S. Le-Denmat, T. Auzelle +4
Piezoelectric semiconductor III-Nitride nanostructures have received increasing interest as an alternative material for energy harvesters, sensors, and self-sustainable electronics…
Electronic properties of air-exposed GaN and surfaces after several device processing compatible cleaning steps
Thomas Auzelle, Florian Ullrich, Sebastian Hietzschold +6
We report on the electronic properties of GaN and surfaces after three different and subsequent device processing compatible cleaning steps: HCl etching, ann…
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…