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Nanomaterials
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Preparation, Characterization and Application of Nanowires
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Preparation, Characterization and Application of Nanowires

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

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 7350

Special Issue Editor

Dr. Jan Eric Stehr

E-Mail Website
Guest Editor
Department of Physics, Chemistry and Biology, Linköpings Universitet, SE-581 83 Linköping, Sweden
Interests: nanomaterials; semiconductor materials (ZnO, Ga2O3, Ga(N)AsP); magnetic resonance spectroscopy (EPR, ODMR); optical spectroscopy (µ-PL, magneto-PL, µ-Raman); gallium oxide

Special Issue Information

Dear Colleagues,

Semiconductor nanowires (NWs) have attracted a growing interest as building blocks for optoelectronic, photovoltaic, and sensing applications. Due to their one-dimensional geometry, NWs can exhibit structural, electrical, and photonic properties that are different from and often superior to their bulk and thin-film counterparts. For example, the absorptivity of NWs can be increased substantially by tuning the geometry of the array structures, which boosts the efficiency of NW solar cells above that of planar devices and also allows reducing material consumption and costs. Furthermore, due to relaxed lattice-match constraints, NWs can be easily grown on foreign substrates.

The main objective of this Special Issue of Nanomaterials is to present relevant and recent insights on the synthesis, characterization, and application of NWs. We invite authors to submit original communications, articles, or reviews on innovative synthesis routes of NWs and also on the characterization of their unique nanoscale properties. Contributions focused on NW applications in the fields of energy production including solar cells and photoelectrochemical water splitting, light emission including LEDs and lasing, as well as sensing are also welcome.

We look forward to receiving your submissions.

Dr. Jan Eric Stehr
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. Nanomaterials 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 2900 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
  • Synthesis
  • XRD
  • Raman
  • Photoluminescence
  • EPR
  • Solar cells
  • LEDs
  • Lasing
  • Sensors

Published Papers (3 papers)

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Research

10 pages, 1379 KiB  
Article
Electrodeposited Magnetic Nanowires with Radial Modulation of Composition
by Claudia Fernández-González, Alejandra Guedeja-Marrón, Beatriz L. Rodilla, Ana Arché-Nuñez, Rubén Corcuera, Irene Lucas, María Teresa González, Maria Varela, Patricia de la Presa, Lucía Aballe, Lucas Pérez and Sandra Ruiz-Gómez
Nanomaterials 2022, 12(15), 2565; https://doi.org/10.3390/nano12152565 - 26 Jul 2022
Cited by 6 | Viewed by 1888
Abstract
In the last few years, magnetic nanowires have gained attention due to their potential implementation as building blocks in spintronics applications and, in particular, in domain-wall- based devices. In these devices, the control of the magnetic properties is a must. Cylindrical magnetic nanowires [...] Read more.
In the last few years, magnetic nanowires have gained attention due to their potential implementation as building blocks in spintronics applications and, in particular, in domain-wall- based devices. In these devices, the control of the magnetic properties is a must. Cylindrical magnetic nanowires can be synthesized rather easily by electrodeposition and the control of their magnetic properties can be achieved by modulating the composition of the nanowire along the axial direction. In this work, we report the possibility of introducing changes in the composition along the radial direction, increasing the degrees of freedom to harness the magnetization. In particular, we report the synthesis, using template-assisted deposition, of FeNi (or Co) magnetic nanowires, coated with a Au/Co (Au/FeNi) bilayer. The diameter of the nanowire as well as the thickness of both layers can be tuned at will. In addition to a detailed structural characterization, we report a preliminary study on the magnetic properties, establishing the role of each layer in the global collective behavior of the system. Full article
(This article belongs to the Special Issue Preparation, Characterization and Application of Nanowires)
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11 pages, 1247 KiB  
Article
Tailored Uniaxial Alignment of Nanowires Based on Off-Center Spin-Coating for Flexible and Transparent Field-Effect Transistors
by Giwon Lee, Haena Kim, Seon Baek Lee, Daegun Kim, Eunho Lee, Seong Kyu Lee and Seung Goo Lee
Nanomaterials 2022, 12(7), 1116; https://doi.org/10.3390/nano12071116 - 28 Mar 2022
Cited by 3 | Viewed by 2547
Abstract
The alignment of nanowires (NWs) has been actively pursued for the production of electrical devices with high-operating performances. Among the generally available alignment processes, spin-coating is the simplest and fastest method for uniformly patterning the NWs. During spinning, the morphology of the aligned [...] Read more.
The alignment of nanowires (NWs) has been actively pursued for the production of electrical devices with high-operating performances. Among the generally available alignment processes, spin-coating is the simplest and fastest method for uniformly patterning the NWs. During spinning, the morphology of the aligned NWs is sensitively influenced by the resultant external drag and inertial forces. Herein, the assembly of highly and uniaxially aligned silicon nanowires (Si NWs) is achieved by introducing an off-center spin-coating method in which the applied external forces are modulated by positioning the target substrate away from the center of rotation. In addition, various influencing factors, such as the type of solvent, the spin acceleration time, the distance between the substrate and the center of rotation, and the surface energy of the substrate, are adjusted in order to optimize the alignment of the NWs. Next, a field-effect transistor (FET) incorporating the highly aligned Si NWs exhibits a high effective mobility of up to 85.7 cm2 V−1 s−1, and an on-current of 0.58 µA. Finally, the single device is enlarged and developed in order to obtain an ultrathin and flexible Si NW FET array. The resulting device has the potential to be widely expanded into applications such as wearable electronics and robotic systems. Full article
(This article belongs to the Special Issue Preparation, Characterization and Application of Nanowires)
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9 pages, 2776 KiB  
Article
Self-Patterned Stretchable Electrode Based on Silver Nanowire Bundle Mesh Developed by Liquid Bridge Evaporation
by Eun Young An, Siyoung Lee, Seung Goo Lee, Eunho Lee, Jeong Ju Baek, Gyojic Shin, Kyung Ho Choi, Jeong Ho Cho and Geun Yeol Bae
Nanomaterials 2021, 11(11), 2865; https://doi.org/10.3390/nano11112865 - 27 Oct 2021
Cited by 2 | Viewed by 4210
Abstract
A new strategy is required to realize a low-cost stretchable electrode while realizing high stretchability, conductivity, and manufacturability. In this study, we fabricated a self-patterned stretchable electrode using a simple and scalable process. The stretchable electrode is composed of a bridged square-shaped (BSS) [...] Read more.
A new strategy is required to realize a low-cost stretchable electrode while realizing high stretchability, conductivity, and manufacturability. In this study, we fabricated a self-patterned stretchable electrode using a simple and scalable process. The stretchable electrode is composed of a bridged square-shaped (BSS) AgNW bundle mesh developed by liquid bridge evaporation and a stretchable polymer matrix patterned with a microcavity array. Owing to the BSS structure and microcavity array, which effectively concentrate the applied strain on the deformable square region of the BSS structure under tensile stretching, the stretchable electrode exhibits high stretchability with a low ΔR/R0 of 10.3 at a strain of 40%. Furthermore, by exploiting the self-patterning ability—attributable to the difference in the ability to form liquid bridges according to the distance between microstructures—we successfully demonstrated a stretchable AgNW bundle mesh with complex patterns without using additional patterning processes. In particular, stretchable electrodes were fabricated by spray coating and bar coating, which are widely used in industry for low-cost mass production. We believe that this study significantly contributes to the commercialization of stretchable electronics while achieving high performance and complex patterns, such as stretchable displays and electronic skin. Full article
(This article belongs to the Special Issue Preparation, Characterization and Application of Nanowires)
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