Vapor phase growth of semiconductor nanowires: key developments and open questions

L Güniat, P Caroff, A Fontcuberta i Morral - Chemical reviews, 2019 - ACS Publications
Nanowires are filamentary crystals with a tailored diameter that can be obtained using a
plethora of different synthesis techniques. In this review, we focus on the vapor phase …

Semiconductor nanowires: to grow or not to grow?

PC McIntyre, AF i Morral - Materials Today Nano, 2020 - Elsevier
Semiconductor nanowires have demonstrated exciting properties for nanophotonics,
sensors, energy technologies, and end-of-roadmap and beyond-roadmap electronic …

Direct-bandgap emission from hexagonal Ge and SiGe alloys

EMT Fadaly, A Dijkstra, JR Suckert, D Ziss… - Nature, 2020 - nature.com
Silicon crystallized in the usual cubic (diamond) lattice structure has dominated the
electronics industry for more than half a century. However, cubic silicon (Si), germanium …

Monolithic infrared silicon photonics: The rise of (Si) GeSn semiconductors

O Moutanabbir, S Assali, X Gong, E O'Reilly… - Applied Physics …, 2021 - pubs.aip.org
(Si) GeSn semiconductors are finally coming of age after a long gestation period. The
demonstration of device-quality epi-layers and quantum-engineered heterostructures has …

Short-wave infrared cavity resonances in a single GeSn nanowire

Y Kim, S Assali, HJ Joo, S Koelling, M Chen… - Nature …, 2023 - nature.com
Nanowires are promising platforms for realizing ultra-compact light sources for photonic
integrated circuits. In contrast to impressive progress on light confinement and stimulated …

Electronic Transport and Quantum Phenomena in Nanowires

G Badawy, EPAM Bakkers - Chemical Reviews, 2024 - ACS Publications
Nanowires are natural one-dimensional channels and offer new opportunities for advanced
electronic quantum transport experiments. We review recent progress on the synthesis of …

Enhanced Sn incorporation in GeSn epitaxial semiconductors via strain relaxation

S Assali, J Nicolas, O Moutanabbir - Journal of Applied Physics, 2019 - pubs.aip.org
We investigate the effect of strain on the morphology and composition of GeSn layers grown
on Ge/Si virtual substrates. By using buffer layers with controlled thickness and Sn content …

Growth and structural properties of step-graded, high Sn content GeSn layers on Ge

J Aubin, JM Hartmann, A Gassenq… - Semiconductor …, 2017 - iopscience.iop.org
Two approaches have been compared for the low temperature epitaxy of thick, partially
relaxed GeSn layers on top of Ge strain relaxed buffers. The benefit of using step-graded …

Atomically uniform Sn-rich GeSn semiconductors with 3.0–3.5 μm room-temperature optical emission

S Assali, J Nicolas, S Mukherjee, A Dijkstra… - Applied Physics …, 2018 - pubs.aip.org
The simultaneous control of lattice strain, composition, and microstructure is crucial to
establish high-quality, direct bandgap GeSn semiconductors. Herein, we demonstrate that …

Mid-infrared Imaging Using Strain-Relaxed Ge1–xSnx Alloys Grown on 20 nm Ge Nanowires

L Luo, MRM Atalla, S Assali, S Koelling, G Daligou… - Nano Letters, 2024 - ACS Publications
Germanium–tin (Ge1–x Sn x) semiconductors are a front-runner platform for compact mid-
infrared devices due to their tunable narrow bandgap and compatibility with silicon …