Evidence map›Paper›PMID 34276869›Full record

ArticleThe journal of physical chemistry. C, Nanomaterials and interfaces2021

Self-Catalyzed AlGaAs Nanowires and AlGaAs/GaAs Nanowire-Quantum Dots on Si Substrates.

Giorgos Boras, Xuezhe Yu, H Aruni Fonseka, George Davis, Anton V Velichko, James A Gott, Haotian Zeng, Shiyao Wu, Patrick Parkinson, Xiulai Xu and 3 more

Abstract read
In one paragraph

Article in The journal of physical chemistry. C, Nanomaterials and interfaces, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. Quantum Light Emission from GaAsACS applied materials & interfaces · 2026
    Article
  2. As-Flux-Induced Diameter Control in GaAs Nanowires.The journal of physical chemistry. C, Nanomaterials and interfaces · 2025
    Article
  3. Article
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Giorgos BorasDepartment of Electronic and Electrical Engineering, University College London, London WC1E 7JE, United Kingdom.ORCID https://orcid.org/0000-0002-7760-422X
Xuezhe YuDepartment of Electronic and Electrical Engineering, University College London, London WC1E 7JE, United Kingdom.ORCID https://orcid.org/0000-0003-4896-8312
H Aruni FonsekaDepartment of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom.ORCID https://orcid.org/0000-0003-3410-6981
George DavisDepartment of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom.
Anton V VelichkoDepartment of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom.
James A GottDepartment of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom.
Haotian ZengDepartment of Electronic and Electrical Engineering, University College London, London WC1E 7JE, United Kingdom.
Shiyao WuInstitute of Physics, Chinese Academy of Science, Beijing 100190, China.
Patrick ParkinsonDepartment of Physics and Astronomy and the Photon Science Institute, University of Manchester, Manchester M13 9PL, United Kingdom.ORCID https://orcid.org/0000-0001-9429-9768
Xiulai XuInstitute of Physics, Chinese Academy of Science, Beijing 100190, China.ORCID https://orcid.org/0000-0001-8231-406X
David MowbrayDepartment of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom.ORCID https://orcid.org/0000-0002-7673-6837
Ana M SanchezDepartment of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom.ORCID https://orcid.org/0000-0002-8230-6059
Huiyun LiuDepartment of Electronic and Electrical Engineering, University College London, London WC1E 7JE, United Kingdom.

Funding

Medical Research Council MR/T021519/1
6 · The paper itself

Abstract

Self-catalyzed AlGaAs nanowires (NWs) and NWs with a GaAs quantum dot (QD) were monolithically grown on Si(111) substrates via solid-source molecular beam epitaxy. This growth technique is advantageous in comparison to the previously employed Au-catalyzed approach, as it removes Au contamination issues and renders the structures compatible with complementary metal-oxide-semiconductor (CMOS) technology applications. Structural studies reveal the self-formation of an Al-rich AlGaAs shell, thicker at the NW base and thinning towards the tip, with the opposite behavior observed for the NW core. Wide alloy fluctuations in the shell region are also noticed. AlGaAs NW structures with nominal Al contents of 10, 20, and 30% have strong room temperature photoluminescence, with emission in the range of 1.50-1.72 eV. Individual NWs with an embedded 4.9 nm-thick GaAs region exhibit clear QD behavior, with spatially localized emission, both exciton and biexciton recombination lines, and an exciton line width of 490 μeV at low temperature. Our results demonstrate the properties and behavior of the AlGaAs NWs and AlGaAs/GaAs NWQDs grown via the self-catalyzed approach for the first time and exhibit their potential for a range of novel applications, including nanolasers and single-photon sources.

Identifiers

PMID34276869
PMCPMC8279736

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.