Special Issue "Semiconductor Nanowires: Fabrication, Characterization, and Applications"

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanoelectronics, Nanosensors and Devices".

Deadline for manuscript submissions: 31 March 2022.

Special Issue Editors

Prof. Dr. Chih-Yen Chen
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Guest Editor
Department of Materials and Optoelectronic Science, National Sun Yat-Sen University (NSYSU), Kaohsiung City 80424, Taiwan
Interests: green energy; electron microscopy; characterization; nanomaterials; optical and electrical properties of nanowires; semiconductor heterojunctions and their application as photodetectors, solar cells, and chemical sensors; photocatalytic water splitting; photocatalytic degradation
Prof. Dr. Hung-Wei (Homer) Yen
E-Mail Website
Guest Editor
Department of Materials Science & Engineering, National Taiwan University (NTU), Taipei City 10617, Taiwan
Interests: materials characterizations: scanning electron microscopy, transmission electron microscopy, X-ray diffraction spectrum, atom probe tomography; materials mechanical behaviors; microstructure and defect physics; phase transformation in alloys; empirical methods: thermo-calc or artificial neural network
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Zong-Hong Lin
E-Mail Website
Guest Editor
Institute of Biomedical Engineering and Department of Power Mechanical Engineering, National Tsing Hua University (NTHU), Hsinchu City 30013, Taiwan
Interests: smart nanogenerators; self-powered nanosensors and nanosystems; porous nanomaterials for electrochemical applications; biomolecule detection; functional nanomaterials with strong antibacterial activities
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Der-Hsien Lien
E-Mail Website
Guest Editor
Department of Electrical Engineering, National Chiao Tung University (NCTU), Hsinchu City 30010, Taiwan
Interests: electronic materials; smart electronics; photophysics of novel semiconductors, graphene, and 2D-layered materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Semiconductor nanowires are designed materials showing one or more functionalities that can be significantly changed in a controlled fashion by external stimuli, such as stress, moisture, electric or magnetic fields, light, temperature, pH, or chemical compounds. One dimensional nanomaterials are materials with typical size features in the lower nanometer size range and characteristic mesoscopic properties. These properties make them attractive objects of fundamental research and potential new applications. The scope of Special Issues—Semiconductor Nanowires: Fabrication, Characterization, and Applications.

Topics:

  1. Semiconductor Nanowires are the basis of many applications, including environmental and bio-chemical sensors, optoelectronic and piezoelectric materials, energy harvesting materials, field effect transistors, and field emission devices, photocatalysts, etc.
  2. One Dimensional Nanomaterials are the basis of many applications, including single-walled carbon nanotubes (SWCNTs), multiple-walled carbon nanotubes (MWCNTs), nanotubes, nanowires, nanostructured frameworks, surface coating technologies, nanocomposites, self-assemblies, characterization, etc.
  3. Methodologies: (1) synthesis of Semiconductor Nanowires, (2) characterization of mesoscopic properties, (3) modeling computation of Semiconductor Nanowires (or One Dimensional Nanomaterials) or mesoscopic effects.
  4. Applications: new applications of Semiconductor One Dimensional Nanomaterials.

Prof. Dr. Chih-Yen Chen
Prof. Dr. Hung-Wei (Homer) Yen
Prof. Dr. Zong-Hong Lin
Prof. Dr. Der-Hsien Lien
Guest Editors

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 papers will be 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. Nanomaterials is an international peer-reviewed open access monthly 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 2200 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

  • Nanowires or one dimensional materials
  • Energy harvesting devices and supercapacitors
  • Optoelectronic and piezoelectric materials
  • Photocatalysts and environmental sensors
  • Field effect transistors and field emission devices
  • Biological or chemical sensors
  • Characterization or modeling computation

Published Papers (2 papers)

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Research

Article
High-Performance Laterally Oriented Nanowire Solar Cells with Ag Gratings
Nanomaterials 2021, 11(11), 2807; https://doi.org/10.3390/nano11112807 - 22 Oct 2021
Viewed by 279
Abstract
A laterally oriented GaAs p-i-n nanowire solar cell with Ag gratings is proposed and studied via coupled three-dimensional optoelectronic simulations. The results show that the gratings significantly enhance the absorption of nanowire for both TM and TE polarized light due to the combined [...] Read more.
A laterally oriented GaAs p-i-n nanowire solar cell with Ag gratings is proposed and studied via coupled three-dimensional optoelectronic simulations. The results show that the gratings significantly enhance the absorption of nanowire for both TM and TE polarized light due to the combined effect of grating diffraction, excitation of plasmon polaritons, and suppression of carrier recombination. At an optimal grating period, the absorption at 650–800 nm, which is an absorption trough for pure nanowire, is substantially enhanced, raising the conversion efficiency from 8.7% to 14.7%. Moreover, the gratings enhance the weak absorption at long wavelengths and extend the absorption cutoff wavelength for ultrathin nanowires, yielding a remarkable efficiency of 13.3% for the NW with a small diameter of 90 nm, 2.6 times that without gratings. This work may pave the way toward the development of ultrathin high-efficiency nanoscale solar cells. Full article
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Article
Temperature-Dependent Superplasticity and Strengthening in CoNiCrFeMn High Entropy Alloy Nanowires Using Atomistic Simulations
Nanomaterials 2021, 11(8), 2111; https://doi.org/10.3390/nano11082111 - 19 Aug 2021
Viewed by 1119
Abstract
High strength and ductility, often mutually exclusive properties of a structural material, are also responsible for damage tolerance. At low temperatures, due to high surface energy, single element metallic nanowires such as Ag usually transform into a more preferred phase via nucleation and [...] Read more.
High strength and ductility, often mutually exclusive properties of a structural material, are also responsible for damage tolerance. At low temperatures, due to high surface energy, single element metallic nanowires such as Ag usually transform into a more preferred phase via nucleation and propagation of partial dislocation through the nanowire, enabling superplasticity. In high entropy alloy (HEA) CoNiCrFeMn nanowires, the motion of the partial dislocation is hindered by the friction due to difference in the lattice parameter of the constituent atoms which is responsible for the hardening and lowering the ductility. In this study, we have examined the temperature-dependent superplasticity of single component Ag and multicomponent CoNiCrFeMn HEA nanowires using molecular dynamics simulations. The results demonstrate that Ag nanowires exhibit apparent temperature-dependent superplasticity at cryogenic temperature due to (110) to (100) cross-section reorientation behavior. Interestingly, HEA nanowires can perform exceptional strength-ductility trade-offs at cryogenic temperatures. Even at high temperatures, HEA nanowires can still maintain good flow stress and ductility prior to failure. Mechanical properties of HEA nanowires are better than Ag nanowires due to synergistic interactions of deformation twinning, FCC-HCP phase transformation, and the special reorientation of the cross-section. Further examination reveals that simultaneous activation of twining induced plasticity and transformation induced plasticity are responsible for the plasticity at different stages and temperatures. These findings could be very useful for designing nanowires at different temperatures with high stability and superior mechanical properties in the semiconductor industry. Full article
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