Atomic resolution analysis of extended defects and Mg agglomeration in Mg-ion-implanted GaN and their impacts on acceptor formation

E Kano, K Kataoka, J Uzuhashi, K Chokawa… - Journal of Applied …, 2022 - pubs.aip.org
We carried out atomic-scale observations of Mg-ion-implanted GaN by transmission electron
microscopy (TEM) and atom probe tomography (APT) to clarify the crystallographic …

Determination of the internal piezoelectric potentials and indium concentration in InGaN based quantum wells grown on relaxed InGaN pseudo-substrates by off-axis …

D Cooper, V Boureau, A Even, F Barbier… - …, 2020 - iopscience.iop.org
Micro light emitting diodes have been grown by metal organic vapor phase epitaxy on
standard GaN and partly relaxed InGaNOS substrates with the purpose of incorporating …

Highly spatially resolved map** of the piezoelectric potentials in InGaN quantum well structures by off-axis electron holography

V Boureau, D Cooper - Journal of Applied Physics, 2020 - pubs.aip.org
The internal fields in 2.2 nm thick InGaN quantum wells in a GaN LED structure have been
investigated by using aberration-corrected off-axis electron holography with a spatial …

[HTML][HTML] On the polarity determination and polarity inversion in nitrogen-polar group III-nitride layers grown on SiC

H Zhang, I Persson, A Papamichail… - Journal of Applied …, 2022 - pubs.aip.org
We investigate the interfaces and polarity domains at the atomic scale in epitaxial AlN and
GaN/AlN grown by hot-wall metal organic chemical vapor epitaxy on the carbon face of SiC …

Alloy distribution and compositional metrology of epitaxial ScAlN by atom probe tomography

S Ndiaye, C Elias, A Diagne, H Rotella… - Applied Physics …, 2023 - pubs.aip.org
The properties of ScAlN layers grown by molecular beam epitaxy have been carefully
studied using atom probe tomography (APT) and complementary techniques. The measured …

[HTML][HTML] Overcoming the compensation of acceptors in GaN: Mg by defect complex formation

Z ** distribution and luminescence in a nitride laser junction by Photonic Atom Probe
E Weikum, A Diaz-Damian, J Houard, G Da Costa… - Physical Review …, 2024 - APS
The Photonic Atom Probe is applied to the study of nanoscale field-emission tip specimens
containing a section of III-N device constituted by a sequence of alloyed and doped sections …

Investigation of AlGaN UV emitting tunnel junction LED devices by off-axis electron holography

D Cooper, VF Arcara, B Damilano, JY Duboz - Nanotechnology, 2024 - iopscience.iop.org
Here we use off-axis electron holography combined with advanced transmission electron
microscopy techniques to understand the opto-electronic properties of AlGaN tunnel junction …

Dopant-defect interactions in Mg-doped GaN via atom probe tomography

OG Licata, S Broderick, E Rocco… - Applied Physics …, 2021 - pubs.aip.org
In this work, an in-depth analysis of atomic level dopant-defect interactions in N-polar GaN:
Mg was performed using atom probe tomography (APT). The 3D visualization of ion …

Behavior of the ε-Ga2O3:Sn Evaporation During Laser-Assisted Atom Probe Tomography

F Chabanais, E Di Russo, A Karg… - Microscopy and …, 2021 - academic.oup.com
The measurement of the composition of ε-Ga2O3 and the quantification of Sn do** in ε-
Ga2O3: Sn by laser-assisted atom probe tomography (APT) may be inaccurate depending …