N-polar GaN: Epitaxy, properties, and device applications

S Mohanty, K Khan, E Ahmadi - Progress in Quantum Electronics, 2023 - Elsevier
Abstract In recent years, Gallium Nitride (GaN) has been established as a material of choice
for high power switching, high power RF and lighting applications. In c-direction, depending …

Molecular beam epitaxy of GaN nanowires on epitaxial graphene

S Fernández-Garrido, M Ramsteiner, G Gao… - Nano …, 2017 - ACS Publications
We demonstrate an all-epitaxial and scalable growth approach to fabricate single-crystalline
GaN nanowires on graphene by plasma-assisted molecular beam epitaxy. As substrate, we …

N-polar III-nitride transistors

MH Wong, UK Mishra - Semiconductors and Semimetals, 2019 - Elsevier
This chapter reviews the historical development and present status of N-polar 000 1¯ GaN
high electron mobility transistors (HEMTs) that aim at addressing the device scaling …

III-Nitride p-down green (520 nm) light emitting diodes with near-ideal voltage drop

SI Rahman, Z Jamal-Eddine… - Applied Physics …, 2022 - pubs.aip.org
We demonstrate p-down green emitting LEDs with low turn-on voltage enabled by efficient
tunnel junctions. Due to the polarization field alignment in the (In, Ga) N/GaN interface with …

[HTML][HTML] Polarization control in nitride quantum well light emitters enabled by bottom tunnel-junctions

H Turski, S Bharadwaj, HG **ng, D Jena - Journal of Applied Physics, 2019 - pubs.aip.org
The frozen internal polarization-induced electric fields due to broken inversion symmetry in
all conventional blue and green nitride semiconductor light-emitting semiconductor quantum …

[HTML][HTML] Excitonic and deep-level emission from N-and Al-polar homoepitaxial AlN grown by molecular beam epitaxy

L van Deurzen, J Singhal, J Encomendero… - APL Materials, 2023 - pubs.aip.org
Using low-temperature cathodoluminescence spectroscopy, we study the properties of N-
and Al-polar AlN layers grown by molecular beam epitaxy on bulk AlN {0001}. Compared …

Optical properties of N-polar GaN: The possible role of nitrogen vacancy-related defects

P Tatarczak, H Turski, KP Korona, E Grzanka… - Applied Surface …, 2021 - Elsevier
Detailed comparison of optical quality of GaN layers grown homoepitaxially on bulk Ga-
polar and N-polar substrates by plasma-assisted molecular beam epitaxy was performed …

[HTML][HTML] Comparative analysis of selective area grown Ga-and N-polar InGaN/GaN nanowires for quantum emitters

A Ghosh, K Khan, S Sankar, ZA Jian, S Hasan… - AIP Advances, 2024 - pubs.aip.org
In this paper, we report the molecular beam epitaxy-grown InGaN-quantum disks embedded
within selective area epitaxy of GaN nanowires with both Ga-and N-polarities. A detailed …

Luminescent N-polar (In, Ga) N/GaN quantum wells achieved by plasma-assisted molecular beam epitaxy at temperatures exceeding 700 C

C Chèze, F Feix, J Lähnemann, T Flissikowski… - Applied Physics …, 2018 - pubs.aip.org
Previously, we found that N-polar (In, Ga) N/GaN quantum wells prepared on freestanding
GaN substrates by plasma-assisted molecular beam epitaxy at conventional growth …

Ga-Polar Quantum Wells Versus N-Polar (In,Ga)N Quantum Disks in GaN Nanowires: A Comparative Analysis of Carrier Recombination, Diffusion, and …

F Feix, T Flissikowski, KK Sabelfeld, VM Kaganer… - Physical Review …, 2017 - APS
We investigate the radiative and nonradiative recombination processes in planar (In, Ga)
N/GaN (0001) quantum wells and (In, Ga) N quantum disks embedded in GaN (000 1¯) …