Evidence map›Paper›PMID 41058974›Full record

ArticleThe journal of physical chemistry. C, Nanomaterials and interfaces2025

As-Flux-Induced Diameter Control in GaAs Nanowires.

Ziyue Yin, Haotian Zeng, Giorgos Boras, Raghavendra R Juluri, Huiwen Deng, Hui Jia, Chong Chen, Stephen Church, Anton Velychko, Fahad Alghamdi and 6 more

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Article in The journal of physical chemistry. C, Nanomaterials and interfaces, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

16 authors.

Ziyue YinDepartment of Electronic and Electrical Engineering, University College London, London WC1E 7JE, U.K.ORCID https://orcid.org/0000-0002-5288-8297
Haotian ZengDepartment of Electronic and Electrical Engineering, University College London, London WC1E 7JE, U.K.ORCID https://orcid.org/0000-0002-7328-9576
Giorgos BorasDepartment of Electronic and Electrical Engineering, University College London, London WC1E 7JE, U.K.
Raghavendra R JuluriDepartment of Physics, University of Warwick, Coventry CV4 7AL, U.K.
Huiwen DengDepartment of Electronic and Electrical Engineering, University College London, London WC1E 7JE, U.K.
Hui JiaDepartment of Electronic and Electrical Engineering, University College London, London WC1E 7JE, U.K.
Chong ChenDepartment of Electronic and Electrical Engineering, University College London, London WC1E 7JE, U.K.
Stephen ChurchDepartment of Physics and Astronomy and the Photon Science Institute, The University of Manchester, Manchester M13 9PL, U.K.ORCID https://orcid.org/0000-0002-0413-7050
Anton VelychkoSchool of Mathematical and Physical Sciences, The University of Sheffield, Sheffield S3 7RH, U.K.
Fahad AlghamdiDepartment of Electronic and Electrical Engineering, University College London, London WC1E 7JE, U.K.
Jae-Seong ParkDepartment of Electronic and Electrical Engineering, University College London, London WC1E 7JE, U.K.ORCID https://orcid.org/0000-0002-6486-2342
Mingchu TangDepartment of Electronic and Electrical Engineering, University College London, London WC1E 7JE, U.K.
David MowbraySchool of Mathematical and Physical Sciences, The University of Sheffield, Sheffield S3 7RH, U.K.ORCID https://orcid.org/0000-0002-7673-6837
Patrick ParkinsonDepartment of Physics and Astronomy and the Photon Science Institute, The University of Manchester, Manchester M13 9PL, U.K.ORCID https://orcid.org/0000-0001-9429-9768
Ana M SanchezDepartment of Physics, University of Warwick, Coventry CV4 7AL, U.K.ORCID https://orcid.org/0000-0002-8230-6059
Huiyun LiuDepartment of Electronic and Electrical Engineering, University College London, London WC1E 7JE, U.K.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Controlling the diameter of self-catalyzed III-V nanowires is important for tailoring their performance in optoelectronic applications. Here, we investigate the impact of abrupt or gradual increase of the V/III flux ratio on the GaAs nanowire diameter. A dynamic model of nanowire diameter is developed to explain the changes induced by flux ratio modulation: (i) shrinkage of the catalyst droplet under elevated As flux and (ii) convergence toward a critical diameter governed by the flux ratio during subsequent nanowire elongation. The different diameter behaviors observed under abrupt or gradual flux increase are elucidated by this relationship, through which we present a quantitative analysis of the relationship between the nanowire diameter and the V/III flux ratio. Epitaxial Ge shells were grown around the modulated-diameter GaAs cores to investigate any impact on the morphology and quality of the group-IV shell. The Ge shell is found to maintain a uniform thickness, regardless of the diameter of the GaAs core. High-resolution annular dark-field scanning transmission electron microscopy reveals Ge shell sidewalls indexed to the {112} planes and rotated by 47° relative to the GaAs core facets, while energy-dispersive X-ray spectroscopy confirms slight Ge interdiffusion into the GaAs core. This work provides a predictive framework for controlling the diameter evolution under varying flux ratios and provides insights into III-V/IV heterointegration.

Identifiers

PMID41058974
PMCPMC12498496

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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.