Special Issue "NANO KOREA 2019"

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Nanotechnology and Applied Nanosciences".

Deadline for manuscript submissions: closed (9 August 2019) | Viewed by 5491

Special Issue Editors

Prof. Dr. Junhong Min
E-Mail Website
Guest Editor
School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea
Interests: sample preparation; nanobiosensor; molecular diagnostic system; bioanalytical engineering
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Prof. Dr. Dae Joon Kang
E-Mail Website
Guest Editor
Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
Interests: synthesis of 2D atomic crystals and their device applications; synthesis of metal oxides and their device physics; electrohydrodynamic lithography; atomic layer deposition
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Prof. Dr. Won Seok Chang
E-Mail Website
Guest Editor
1. Department of Nano Mechanics, Nanomechanical Systems Research Division, Korea Institute of Machinery and Materials (KIMM), Daejeon 34103, Korea
2. Department of Nano-Mechatronics, Korea University of Science and Technology (UST), Daejeon 34113, Korea
Interests: ultrafast laser processing; laser scanning microscopy; nanomaterial based flexible device; digital lighography
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Prof. Dr. Wan Soo Yun
E-Mail Website
Guest Editor
Department of Chemistry, Sungkyunkwan University, Suwon 440-746, Korea
Interests: nanobiosensor; nano-analysis; nanomaterials; nanomanufacturing
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Prof. Dr. Jong-Ryul Jeong
E-Mail Website
Guest Editor
Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Korea
Interests: nanomagnetic materials; spin caloritronics; plasmonic nanostructures; magnetoplasmonics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue will publish selected papers from the 17th International Nanotech Symposium & Nano-Convergence Exhibition (NANO KOREA 2019), 2–5 July, 2019, KINTEX, Ilsan, Korea.

In particular, the symposium, which is the largest sympoisum on nanoscale science and technology in Korea, will be a meaningful occasion to confirm major research results and up-to-date research trends, increase the exchange among researchers in relevant fields, and materialize the results of research. The NANO KOREA symposium will cover the following main topics:

  • Nanoelectronics and photonics;
  • Advanced nanomaterials;
  • Nanofabrication and measurement;
  • Nanobiotechnology and nanomedicine;
  • Nanotechnology for energy;
  • Safety, standardization, and regulation in nanotechlogy;
  • Sensors and actuators;
  • Computational nanoscience and technology.

Papers attracting the most interest at the conference, or that provide novel contributions, will be selected for publication in Applied Sciences. These papers will be peer-reviewed for validation of research results, developments, and applications.

You may choose our Joint Special Issue in Micromachines.

Prof. Dr. Junhong Min
Prof. Dr. Dae Joon Kang
Prof. Dr. Won Seok Chang
Prof. Dr. Wan Soo Yun
Prof. Dr. Jong-Ryul Jeong
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 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. Applied Sciences 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 2300 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

  • Micro/Nanofabrication
  • Nanoelectronics
  • Bionanotechnology
  • Nanomaterials
  • Computational Materials Design

Published Papers (4 papers)

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Research

Article
Electrical Characterization of Pork Tissue Measured by a Monopolar Injection Needle and Discrete Fourier Transform based Impedance Measurement
Appl. Sci. 2019, 9(19), 4049; https://doi.org/10.3390/app9194049 - 27 Sep 2019
Cited by 4 | Viewed by 978
Abstract
Ultrasonography or fluoroscopy-guided needle injection has been used for intra-articular injection therapy against adhesive capsulitis and joint diseases. To improve the image-guided intra-articular injection therapy, electrical impedance measurement based positioning of the needle tip in the target tissue can be applied. The feasibility [...] Read more.
Ultrasonography or fluoroscopy-guided needle injection has been used for intra-articular injection therapy against adhesive capsulitis and joint diseases. To improve the image-guided intra-articular injection therapy, electrical impedance measurement based positioning of the needle tip in the target tissue can be applied. The feasibility of the discrimination for the tissue layer at which the disposable monopolar injection needle tip position was investigated using the discrete Fourier transform (DFT)-based impedance measurement system and the ultrasound imaging device. The electrical impedance spectra of the pork tissue measured in the frequency range of 200 Hz to 50 kHz were characterized by designed equivalent circuit modeling analysis. The normalized impedance data of the tissue layers (dermis, hypodermis, and muscle) were significantly different from each other (p-value < 0.001). The DFT-based impedance measurement system with a monopolar injection needle can be complementary to the image-guided intra-articular injection therapy. Full article
(This article belongs to the Special Issue NANO KOREA 2019)
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Article
Compact Model for L-Shaped Tunnel Field-Effect Transistor Including the 2D Region
Appl. Sci. 2019, 9(18), 3716; https://doi.org/10.3390/app9183716 - 06 Sep 2019
Cited by 3 | Viewed by 780
Abstract
The L-shaped tunneling field-effect transistor (LTFET) is the only line-tunneling type of TFET to be experimentally demonstrated. To date, there is no literature available on the compact model of LTFET. In this paper, a compact model of LTFET is presented. LTFET has both [...] Read more.
The L-shaped tunneling field-effect transistor (LTFET) is the only line-tunneling type of TFET to be experimentally demonstrated. To date, there is no literature available on the compact model of LTFET. In this paper, a compact model of LTFET is presented. LTFET has both one-dimensional (1D) and 2D band-to-band tunneling (BTBT) components. The 2D BTBT part dominates in the subthreshold region, whereas the 1D BTBT dominates at higher gate-source biases. The model consists of 1D and 2D BTBT models. The 2D BTBT model is based on the assumption that the electric field originating from the gate and terminating at the source edge is perfectly circular. Tunneling path length is obtained by calculating the distance along an electric field arc that runs from gate to source. The 1D BTBT model is based on a simultaneous solution of the 1D Poisson equation in source and channel regions. Expressions for electric field and potential obtained from integrating the Poisson equation in source and channel regions are solved simultaneously to find the surface potential. Once the surface potential is known, all the other unknown variables, including junction potential and source depletion length, can be calculated. Using the potential profile, tunneling lengths were found for both the source-to-channel BTBT regime, and channel-to-channel BTBT regime. The tunneling lengths were used to calculate the BTBT tunneling rate, and finally, the drain-source current as a function of gate-source, and drain-source bias was calculated. The model results were compared against technology computer-aided design (TCAD) simulation results and were found to be in reasonable agreement for a compact model. Full article
(This article belongs to the Special Issue NANO KOREA 2019)
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Article
Analysis of DC Characteristics in GaN-Based Metal-Insulator-Semiconductor High Electron Mobility Transistor with Variation of Gate Dielectric Layer Composition by Considering Self-Heating Effect
Appl. Sci. 2019, 9(17), 3610; https://doi.org/10.3390/app9173610 - 02 Sep 2019
Cited by 2 | Viewed by 1812
Abstract
This study investigates metal-insulator-semiconductor high electron mobility transistor DC characteristics with different gate dielectric layer compositions and thicknesses, and lattice temperature effects on gate leakage current by using a two-dimensional simulation. We first compared electrical properties, including threshold voltage, transconductance, and gate leakage [...] Read more.
This study investigates metal-insulator-semiconductor high electron mobility transistor DC characteristics with different gate dielectric layer compositions and thicknesses, and lattice temperature effects on gate leakage current by using a two-dimensional simulation. We first compared electrical properties, including threshold voltage, transconductance, and gate leakage current with the self-heating effect, by applying a single Si3N4 dielectric layer. We then employed different Al2O3 dielectric layer thicknesses on top of the Si3N4, and also investigated lattice temperature across a two-dimensional electron gas channel layer with various dielectric layer compositions to verify the thermal effect on gate leakage current. Gate leakage current was significantly reduced as the dielectric layer was added, and further decreased for a 15-nm thick Al2O3 on a 5-nm Si3N4 structure. Although the gate leakage current increased as Al2O3 thickness increased to 35 nm, the breakdown voltage was improved. Full article
(This article belongs to the Special Issue NANO KOREA 2019)
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Article
TiO2/ZnO Nanofibers Prepared by Electrospinning and Their Photocatalytic Degradation of Methylene Blue Compared with TiO2 Nanofibers
Appl. Sci. 2019, 9(16), 3404; https://doi.org/10.3390/app9163404 - 19 Aug 2019
Cited by 14 | Viewed by 1668
Abstract
TiO2 nanofibers have high chemical stability and high strength and are applied to many fields such as air pollution sensors and air pollutant removal filters. ZnO nanofibers also have very high absorptivity in that air and are used as germicides and ceramic [...] Read more.
TiO2 nanofibers have high chemical stability and high strength and are applied to many fields such as air pollution sensors and air pollutant removal filters. ZnO nanofibers also have very high absorptivity in that air and are used as germicides and ceramic brighteners. TiO2/ZnO nanofibers, which have a composite form of TiO2 and ZnO, were fabricated and show higher photocatalytic properties than existing TiO2. The precursor, including zinc nitrate hexahydrate, polyvinyl acetate, and titanium isopropoxide, was used as a spinning solution for TiO2/ZnO nanofibers. Electrospun TiO2/ZnO nanofibers were calcined at 600 °C and analyzed by field emission scanning electron microscope (FE-SEM) and X-ray diffraction (XRD). The average diameter of TiO2/ZnO nanofibers was controlled in the range of 189 nm to 1025 nm. XRD pattern in TiO2/ZnO nanofibers have a TiO2 anatase, ZnO, Ti2O3, and ZnTiO3 structure. TiO2/ZnO nanofibers with a diameter of 400 nm have the best photocatalytic performance in the methylene blue degradation experiments and an absorbance decrease of 96.4% was observed after ultraviolet (UV) irradiation of 12 h. Full article
(This article belongs to the Special Issue NANO KOREA 2019)
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