GaAsP-GaAs nanowire quantum dots for novel quantum emitters
Lead Research Organisation:
University College London
Department Name: Electronic and Electrical Engineering
Abstract
Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.
Organisations
People |
ORCID iD |
| Huiyun Liu (Principal Investigator) |
Publications
Ali H
(2018)
High-Responsivity Photodetection by a Self-Catalyzed Phase-Pure p-GaAs Nanowire.
in Small (Weinheim an der Bergstrasse, Germany)
Boras G
(2020)
Checked patterned elemental distribution in AlGaAs nanowire branches via vapor-liquid-solid growth.
in Nanoscale
Boras G
(2019)
III-V ternary nanowires on Si substrates: growth, characterization and device applications
in Journal of Semiconductors
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
Chen C
(2023)
Initialization of Nanowire or Cluster Growth Critically Controlled by the Effective V/III Ratio at the Early Nucleation Stage
in The Journal of Physical Chemistry Letters
Choi H
(2020)
Visualizing the role of photoinduced ion migration on photoluminescence in halide perovskite grains
in Journal of Materials Chemistry C
Cui F
(2021)
Robust Protection of III-V Nanowires in Water Splitting by a Thin Compact TiO2 Layer.
in ACS applied materials & interfaces
Fonseka A
(2020)
GaAsP nanowires containing intentional and self-forming quantum dots
| 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 | 11/2021 |
| End | 04/2025 |