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Recent Advances in Electromagnetic Interference Shielding Materials
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Recent Advances in Electromagnetic Interference Shielding Materials

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

Deadline for manuscript submissions: closed (20 October 2023) | Viewed by 7223

Special Issue Editor

Dr. Ehsan Hosseini

E-Mail Website
Guest Editor
National Research Council of Canada (NRC) and Department of Chemical & Biological Engineering, School of Engineering, University of Ottawa, 75 Laurier Ave. E., Ottawa, ON K1N 6N5, Canada
Interests: conducting polymers; carbon production; semiconducting polymers, and semiconductors; nano energy materials; printable organic electronics; electromagnetic interference shielding; organic-based sensors/bio-sensors; flexible electronic devices, and wearable electronics; polymer nanocomposites; nanomaterials engineering; surface science, thin film deposition, and 2D materials; energy harvesting and storage devices; condensed matter physics; magnetic nanoparticles; additive manufacturing

Special Issue Information

Dear Colleagues,

The rapid development of electronics, including wireless communication systems, medical devices, and military equipment, has made the science of electromagnetic radiation and the pollution it creates, known as electromagnetic interference (EMI), of utmost consideration in modern technologies. These concerns have attracted extensive research on the fabrication of numerous shielding materials, utilizing various carbon allotropes, metal nanowires, polymers, and very recently MXene composites. Interestingly, while research on the new fabrication techniques of EMI shields with higher shielding effectiveness is still in progress, current studies have drifted toward the fabrication of lightweight and multilayer EMI shielding materials with improved mechanical characteristics for more unconventional flexible electronics. As the next big leap in the field of electromagnetic shielding materials, it is important to bring together novel high-quality ideas to cover the type of materials, underlying shielding mechanisms, and fabrication techniques employed. Highlighting the merits, drawbacks, challenges, and industry demands for different shielding applications can significantly support progress in this field. 

Hence, the objective of this Special Issue is to offer a platform for the latest innovative EMI shielding material fabrication technologies within the scope of the journal to provide an outlook for future trends in the growing interest of the industry in this area.

We kindly invite you to submit an article/review for this Special Issue. Full papers, communications, and reviews are all welcome.

Dr. Ehsan Hosseini
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

  • electromagnetic shielding
  • electromagnetic interference shielding
  • EMI shielding
  • transparent EMI shields
  • multilayer EMI shields
  • lightweight EMI shields
  • absorption loss
  • reflection loss
  • magnetic loss
  • skin depth
  • nanocomposites
  • dielectric
  • permittivity
  • permeability
  • interfacial polarization
  • transmission

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Published Papers (3 papers)

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Research

14 pages, 2852 KiB  
Article
Lead-Free Ternary Glass for Radiation Protection: Composition and Performance Evaluation for Solar Cell Coverage
by Mohamed A. M. Uosif, Shams A. M. Issa, Antoaneta Ene, Ahmed M. A. Mostafa, Ali Atta, Emam F. El Agammy and Hesham M. H. Zakaly
Materials 2023, 16(8), 3036; https://doi.org/10.3390/ma16083036 - 12 Apr 2023
Cited by 7 | Viewed by 1617
Abstract
Solar cells in superstrate arrangement need a protective cover glass as one of its main components. The effectiveness of these cells is determined by the cover glass’s low weight, radiation resistance, optical clarity, and structural integrity. Damage to the cell covers brought on [...] Read more.
Solar cells in superstrate arrangement need a protective cover glass as one of its main components. The effectiveness of these cells is determined by the cover glass’s low weight, radiation resistance, optical clarity, and structural integrity. Damage to the cell covers brought on by exposure to UV irradiation and energetic radiation is thought to be the root cause of the ongoing issue of a reduction in the amount of electricity that can be generated by solar panels installed on spacecraft. Lead-free glasses made of xBi2O3–(40 − x)CaO-60P2O5 (x = 5, 10, 15, 20, 25, and 30 mol%) were created using the usual approach of melting at a high temperature. The amorphous nature of the glass samples was confirmed using X-ray diffraction. At energies of 81, 238, 356, 662, 911, 1173, 1332, and 2614 keV, the impact of various chemical compositions on gamma shielding in a phospho-bismuth glass structure was measured. The evaluation of gamma shielding revealed that the results of the mass attenuation coefficient of glasses increase as the Bi2O3 content increases but decrease as the photon energy increases. As a result of the study conducted on the radiation-deflecting properties of ternary glass, a lead-free low-melting phosphate glass that exhibited outstanding overall performance was developed, and the optimal composition of a glass sample was identified. The 60P2O5–30Bi2O3–10CaO glass combination is a viable option for use in radiation shielding that does not include lead. Full article
(This article belongs to the Special Issue Recent Advances in Electromagnetic Interference Shielding Materials)
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11 pages, 5250 KiB  
Article
Enhanced Microwave-Absorbing Property of Honeycomb Sandwich Structure with a Significant Interface Effect
by Yiming Zhao, Yimeng Shan, Guoliang Ji, Yungang Sun, Weibin Shi and Minghang Li
Materials 2022, 15(16), 5741; https://doi.org/10.3390/ma15165741 - 19 Aug 2022
Cited by 5 | Viewed by 2329
Abstract
Honeycomb sandwich structures (HSSs) are excellent candidates for light and efficient microwave-absorbing materials. In this work, we design an HSS using SiO2 fiber-reinforced epoxy resin (SiO2f/ER) composites as both the top and bottom layers to improve the impedance matching with [...] Read more.
Honeycomb sandwich structures (HSSs) are excellent candidates for light and efficient microwave-absorbing materials. In this work, we design an HSS using SiO2 fiber-reinforced epoxy resin (SiO2f/ER) composites as both the top and bottom layers to improve the impedance matching with free space. Target dielectric properties of the honeycomb and coated lossy material of the HSS were calculated based on the multilayer transmission line theory, metal backplane model, and homogenization theory. In addition, the interface effect between the SiO2f/ER and honeycomb of the HSS was discussed theoretically, experimentally, and numerically, indicating a 1–4% contribution of microwave absorption resulting from the interface. By analyzing the equivalent resistance, equivalent capacitance, as well as equivalent inductance, the enhanced microwave absorption of HSS is attributed to the formation of the interfacial transition zone, which benefits both impedance matching and electromagnetic loss. Full article
(This article belongs to the Special Issue Recent Advances in Electromagnetic Interference Shielding Materials)
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10 pages, 11711 KiB  
Article
Analysis of Electromagnetic Shielding Properties of a Material Developed Based on Silver-Coated Copper Core-Shell Spraying
by Yu-Jae Jeon, Jong-Hwan Yun and Min-Soo Kang
Materials 2022, 15(15), 5448; https://doi.org/10.3390/ma15155448 - 8 Aug 2022
Cited by 10 | Viewed by 2161
Abstract
This study proposes an electromagnetic shielding material sprayed with silver-coated copper powder (core-shell powder). The shielding properties of the material are analyzed in details section. Cross-sectional observation and sheet resistance measurement were used to determine the thickness and electrical conductivity of the electromagnetic [...] Read more.
This study proposes an electromagnetic shielding material sprayed with silver-coated copper powder (core-shell powder). The shielding properties of the material are analyzed in details section. Cross-sectional observation and sheet resistance measurement were used to determine the thickness and electrical conductivity of the electromagnetic shielding layer, which was generated by spray-coating; this aided in confirming the uniformity of the coating film. The results indicate that the electromagnetic interference shielding effectiveness increases when the silver-coated copper paste (core-shell paste) is used as the coating material rather than the conventional aluminum base. The proposed material can be used in various frequency ranges owing to the excellent shielding effectiveness of the core-shell paste used in this study. Further investigations on the optimized spray-coating type of electromagnetic shielding material are required based on the composition of the core-shell paste and the thickness of the coating film. Full article
(This article belongs to the Special Issue Recent Advances in Electromagnetic Interference Shielding Materials)
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