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Advances in Nanowires: Growth, Properties and Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Nanomaterials and Nanotechnology".

Deadline for manuscript submissions: closed (20 June 2023) | Viewed by 1284

Special Issue Editor


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Guest Editor
Department of Electrical and Computer Engineering, McGill University, Montreal, QC H3A0E9, Canada
Interests: semiconductor materials; nanowires, molecular beam epitaxy; optoelectronic devices; light-emitting diodes; lasers; artificial photosynthesis
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Special Issue Information

Dear Colleagues,

We are pleased to announce a new Special Issue of Materials entitled “Advances in Nanowires: Growth, Properties and Applications”. The past decade has witnessed a continuous boom of research in nanowires, not only from pure scientific interest, but also for pushing nanotechnology for practical device applications. While phenomenal progress has been made in nanowire research with various material systems, this Special Issue intends to capture the exciting process in semiconductor group-III nitride nanowires throughout the process, from materials synthesis to device applications.

Group-III nitrides include InN, GaN, and AlN. The uniqueness of this material system is the ultrawide, direct, and tunable bandgaps from around 0.6 eV all the way to around 6 eV, making them highly suitable for both photonic and electronic device applications. The additional merits of this material system include high mechanical strength and high chemical inertness. Research addressing group-III nitride nanowires rose in the 2000s, where they were synthesized by chemical methods. In the past decade, large-scale epitaxial tools have been utilized in the synthesis of group-III nitride nanowires, which makes it possible to produce wafer-scale devices which are more compatible with modern semiconductor device processing. A wide range of substrates have been used, such as Si, diamond, graphene, and flexible metal foils. A wide range of photonic devices have also been developed, including white and color-tunable LEDs and lasers, UV LEDs and lasers, near-infrared LEDs and photodetectors, as well as uses in artificial photocatalysts. Moreover, by using selective area epitaxy, novel surface-emitting lasers and high-performance micro-LEDs have been demonstrated in recent years. While this Special Issue mainly focuses on experiments, theoretical studies on nanowire structures showing interesting physical properties will also be considered for submission.

Dr. Songrui Zhao
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • group-III nitrides
  • nanowires
  • epitaxy
  • flexible
  • photonics
  • light-emitting diodes
  • lasers
  • photodetectors
  • artificial photocatalysts

Published Papers (1 paper)

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Research

17 pages, 3512 KiB  
Article
Analytical and Numerical Investigation of Nanowire Transistor X-ray Detector
by Abdelhady Ellakany, Abdelhalim Zekry, Mohamed Abouelatta, Ahmed Shaker, Gihan T. Sayah and Mohamed M. El-Banna
Materials 2023, 16(7), 2637; https://doi.org/10.3390/ma16072637 - 27 Mar 2023
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Abstract
Recently, nanowire detectors have been attracting increasing interest thanks to their advantages of high resolution and gain. The potential of using nanowire detectors is investigated in this work by developing a physically based model for Indium Phosphide (InP) phototransistor as well as by [...] Read more.
Recently, nanowire detectors have been attracting increasing interest thanks to their advantages of high resolution and gain. The potential of using nanowire detectors is investigated in this work by developing a physically based model for Indium Phosphide (InP) phototransistor as well as by performing TCAD simulations. The model is based on solving the basic semiconductor equations for bipolar transistors and considering the effects of charge distribution on the bulk and on the surface. The developed model also takes into consideration the impact of surface traps, which are induced by photogenerated carriers situated at the surface of the nanowire. Further, photogating phenomena and photodoping are also included. Moreover, displacement damage (DD) is also investigated; an issue arises when the detector is exposed to repeated doses. The presented analytical model can predict the current produced from the incident X-ray beam at various energies. The calculation of the gain of the presented nanowire carefully considers the different governing effects at several values of energies as well as biasing voltage and doping. The proposed model is built in MATLAB, and the validity check of the model results is achieved using SILVACO TCAD device simulation. Comparisons between the proposed model results and SILVACO TCAD device simulation are provided and show good agreement. Full article
(This article belongs to the Special Issue Advances in Nanowires: Growth, Properties and Applications)
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