Luminescence associated with stacking faults in GaN

J Lähnemann, U Jahn, O Brandt… - Journal of Physics D …, 2014 - iopscience.iop.org
Basal-plane stacking faults are an important class of optically active structural defects in
wurtzite semiconductors. The local deviation from the 2H stacking of the wurtzite matrix to a …

Ultrafast carrier dynamics in two-dimensional transition metal dichalcogenides

Y Li, J Shi, Y Mi, X Sui, H Xu, X Liu - Journal of Materials Chemistry C, 2019 - pubs.rsc.org
An overall understanding of the carrier dynamics in two-dimensional transition metal
dichalcogenides (TMDs) is necessary to improve the quantum efficiencies and …

[HTML][HTML] GaN based nanorods for solid state lighting

S Li, A Waag - Journal of Applied Physics, 2012 - pubs.aip.org
In recent years, GaN nanorods are emerging as a very promising novel route toward devices
for nano-optoelectronics and nano-photonics. In particular, core-shell light emitting devices …

Bound excitons in ZnO: Structural defect complexes versus shallow impurity centers

MR Wagner, G Callsen, JS Reparaz, JH Schulze… - Physical Review B …, 2011 - APS
ZnO single crystals, epilayers, and nanostructures often exhibit a variety of narrow emission
lines in the spectral range between 3.33 and 3.35 eV which are commonly attributed to …

Epitaxy of GaN nanowires on graphene

V Kumaresan, L Largeau, A Madouri, F Glas… - Nano …, 2016 - ACS Publications
Epitaxial growth of GaN nanowires on graphene is demonstrated using molecular beam
epitaxy without any catalyst or intermediate layer. Growth is highly selective with respect to …

The nanorod approach: GaN NanoLEDs for solid state lighting

A Waag, X Wang, S Fündling, J Ledig… - … status solidi c, 2011 - Wiley Online Library
Vertically aligned GaN nanorods have recently obtained substantial interest as a new
approach to solid state lighting. In comparison to conventional planar LEDs, 3D NanoLEDs …

Surface-induced effects in GaN nanowires

R Calarco, T Stoica, O Brandt… - Journal of materials …, 2011 - cambridge.org
Semiconductor nanowires (NWs) are characterized by an extraordinarily large surface-to-
volume ratio. Consequently, surface effects are expected to play a much larger role than in …

An enhanced surface passivation effect in InGaN/GaN disk-in-nanowire light emitting diodes for mitigating Shockley–Read–Hall recombination

C Zhao, TK Ng, A Prabaswara, M Conroy, S Jahangir… - Nanoscale, 2015 - pubs.rsc.org
We present a detailed study of the effects of dangling bond passivation and the comparison
of different sulfide passivation processes on the properties of InGaN/GaN quantum-disk …

Spontaneous nucleation and growth of GaN nanowires: the fundamental role of crystal polarity

S Fernández-Garrido, X Kong, T Gotschke… - Nano …, 2012 - ACS Publications
We experimentally investigate whether crystal polarity affects the growth of GaN nanowires
in plasma-assisted molecular beam epitaxy and whether their formation has to be induced …

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 …