GaAsP-GaAs nanowire quantum dots for novel quantum emitters
Lead Research Organisation:
University College London
Department Name: Electronic and Electrical Engineering
Abstract
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Organisations
People |
ORCID iD |
Huiyun Liu (Principal Investigator) |
Publications
Choi H
(2020)
Visualizing the role of photoinduced ion migration on photoluminescence in halide perovskite grains
in Journal of Materials Chemistry C
Chan S
(2019)
Investigation into the current loss in InAs/GaAs quantum dot solar cells with Si-doped quantum dots
in Journal of Physics D: Applied Physics
Zhang Y
(2020)
Self-catalyzed GaAs(P) nanowires and their application for solar cells
in Journal of Physics D: Applied Physics
Rybchenko S
(2021)
Resonant enhancement of Raman scattering by surface phonon polaritons in GaAs nanowires
in Journal of Physics D: Applied Physics
Rybchenko S
(2021)
Polarization properties of Raman scattering by surface phonon polaritons in GaAsP nanowires
in Journal of Physics D: Applied Physics
Boras G
(2019)
III-V ternary nanowires on Si substrates: growth, characterization and device applications
in Journal of Semiconductors
Skalsky S
(2020)
Heterostructure and Q-factor engineering for low-threshold and persistent nanowire lasing.
in Light, science & applications
Zhang Y
(2016)
Influence of Droplet Size on the Growth of Self-Catalyzed Ternary GaAsP Nanowires.
in Nano letters
Valente J
(2018)
Light-Emitting GaAs Nanowires on a Flexible Substrate.
in Nano letters
Fonseka HA
(2019)
Self-Formed Quantum Wires and Dots in GaAsP-GaAsP Core-Shell Nanowires.
in Nano letters
Description | 1. Controlled and reproducible doping is essential for nanowires (NWs) to realize their functions. In this project, the doping mechanism of self-catalyzed NWs and the influence of self-catalytic droplets on the doping process are systematically studied This study is an essential step toward the design and fabrication of nanowire devices. 2. The growth of self-catalyzed core-shell NWs is investigated systematically using GaAs(P) NWs. The defects in the core NW are found to be detrimental for the shell growth. These defects are effectively eliminated by introducing beryllium (Be) doping during the NW core growth. Shells with pure zinc-blende crystal quality and highly regular morphology are successfully grown on the defect-free NW cores. These results provide useful information on guiding the growth of high-quality shell, which can greatly enhance the NW device performance. 3. Nanowire QW laser was achieved with record low threshold. 4. Nanowire quantum well structures have been developed as promising candidate for nanowire lasers. |
Exploitation Route | These findings will enable high-qiality Nanowire materials and devices possible. We developed high-quality GaAs/GaAsP quantum-well nanowire emitters, including single-photon emitter and lasers. These devices could be potentially used in quantum technology and lighting areas. |
Sectors | Digital/Communication/Information Technologies (including Software),Electronics,Energy |
Description | EPSRC Centre for Doctoral Training in Compound Semiconductor Manufacturing |
Amount | £6,589,026 (GBP) |
Funding ID | EP/S024441/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 06/2019 |
End | 12/2027 |
Description | EPSRC Future Manufacturing Hub |
Amount | £10,330,423 (GBP) |
Funding ID | EP/P006973/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 10/2016 |
End | 09/2023 |
Description | H2020-MSCA-ITN-2016 Marie Sklodowska-Curie Innovative Training Networks |
Amount | € 1,000,000 (EUR) |
Organisation | European Commission |
Department | Horizon 2020 |
Sector | Public |
Country | European Union (EU) |
Start | 01/2017 |
End | 12/2020 |
Description | National Epitaxy Facility |
Amount | £12,000,000 (GBP) |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 01/2017 |
End | 12/2021 |
Description | Phosphide-based nanowires for visible and near-infrared miniature photon emitters |
Amount | £940,501 (GBP) |
Funding ID | EP/W002302/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 04/2022 |
End | 04/2025 |