Theoretical study of electromagnetic and optical properties of periodic conductive networks based on Voronoi diagrams

Shiriaev, Pavel; Makeev, Mstislav; Ryzhenko, Dmitry; Popkov, O. V.

doi:10.1016/j.matpr.2019.07.368

Cited by 4 publications

(4 citation statements)

References 2 publications

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“…Figure 5 shows the SEM image of silver micro caps of various thicknesses, which were obtained using magnetron and thermal deposition. The shape of single silver micro caps can be mathematically described by the Voronoi distribution [64] Based on the SEM images, it can be seen that the side faces of the silver micro caps for samples M-100 and T-100 can move freely. While side faces with a silver thickness of 300 nm and 600 nm, both in the case of thermal and magnetron deposition are rigid.…”

Section: Morphology Structural and Transport Studies Silver Micro Cap...mentioning

confidence: 99%

Eco-Friendly Scalable Manufacturing Silver Transparent Сonductive Mesh and Silver Micro Caps, in One Technological Cycle for Efficient EMI Shielding Materials for 5G Communications

Voronin,

Fadeev,

Ivanchenko

et al. 2023

Preprint

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For the first time, an environmentally friendly waste-free closed cycle for the formation of EMI shielding materials that are promising for 5G communications is considered. Based on the proposed closed technological cycle, two types of EMI shielding materials have been obtained; both materials have significant prospects for signal shielding in all ranges that are allocated in different countries for 5G communication. The first type of materials are transparent conductive meshes with a transparency of more than 80% and with a shielding efficiency of more than 40 dB in the S and L bands and about 30 dB in the K and Ka bands. The study of signal reflection characteristics in the S, L, C, K and Ka bands showed the promise of using these materials as transparent 5G signal reflectors. The reflection coefficient in all considered ranges is above 90% (-0.5 dB). The second type of shielding material are continuous silver micro caps films characterized by a shielding efficiency of 90.1 dB at a thickness of 6.2±1.2 µm. We have also shown that silver micro caps can separate into silver flakes and ribbons when sonicated. These materials can also be used to produce EMI shielding coatings and composites. A detailed analysis of the shielding properties showed that each type of materials obtained in a closed technological cycle is comparable with the best literature results and significantly wins in terms of cost.

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Section: Morphology Structural and Transport Studies Silver Micro Cap...mentioning

confidence: 99%

Eco-Friendly Scalable Manufacturing Silver Transparent Сonductive Mesh and Silver Micro Caps, in One Technological Cycle for Efficient EMI Shielding Materials for 5G Communications

Voronin,

Fadeev,

Ivanchenko

et al. 2023

Preprint

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“…Two studies [ 78 , 79 ] provide a description of the calculated model and the results of the conductive mesh structures’ calculation, obtaining a screening coefficient SE of more than 50 dB with transparency of more than 90% in the visible range. These calculated values were obtained for a width and height of the mesh conductors of 1.5 and 14 µm, respectively.…”

Section: The Analysis Of the Production Technologies Of Transparent Mesh Structuresmentioning

confidence: 99%

Optically Transparent and Highly Conductive Electrodes for Acousto-Optical Devices

et al. 2021

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The study was devoted to the creation of transparent electrodes based on highly conductive mesh structures. The analysis and reasonable choice of technological approaches to the production of such materials with a high Q factor (the ratio of transparency and electrical conductivity) were carried out. The developed manufacturing technology consists of the formation of grooves in a transparent substrate by photolithography methods, followed by reactive ion plasma etching and their metallization by chemical deposition using the silver mirror reaction. Experimental samples of a transparent electrode fabricated using this technology have a sheet resistance of about 0.1 Ω/sq with a light transmittance in the visible wavelength range of more than 60%.

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“…The markers show the values of the width and depth of the groove's or line's height, obtained from the literature sources, and the lines show the technological limitations of the approaches. Two studies [78,79] provide a description of the calculated model and the results of the conductive mesh structures' calculation, obtaining a screening coefficient SE of more than 50 dB with transparency of more than 90% in the visible range. These calculated values were obtained for a width and height of the mesh conductors of 1.5 and 14 µm, respectively.…”

mentioning

confidence: 99%

“…Notably, the methods of nanoimprinting and EHD printing, with their further development, have considerable potential for creating serial technology for producing large-area, micro-mesh, transparent electrodes. Two studies [78,79] provide a description of the calculated model and the results of the conductive mesh structures' calculation, obtaining a screening coefficient SE of more than 50 dB with transparency of more than 90% in the visible range. These calculated values were obtained for a width and height of the mesh conductors of 1.5 and 14 µm, respectively.…”

mentioning

confidence: 99%

Acousto-Optical Spectral Technologies

2023

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It is our pleasure to present you this collection of papers.Acousto-optic technologies have increasingly attracted the attention of scientists and engineers.Acousto-optic interactions have become the flexible basis of compact and robust devices for the analysis of the intensity, spectrum, polarization, and other properties of light. In this book, modern trends of acousto-optical spectral technologies, including the fundamentals and optimization of existing techniques, are highlighted and discussed. This reprint provides a forum for reports on technical developments that allow the spectral analysis of various objects to take place. The goal of this reprint is to provide readers with an overview of the hot topics and the state of the art regarding the applications of acousto-optic techniques, including new materials and structures, theoretical and experimental studies of light diffraction by ultrasonic waves, spectroscopy, and spectral imaging.

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Theoretical study of electromagnetic and optical properties of periodic conductive networks based on Voronoi diagrams

Cited by 4 publications

References 2 publications

Eco-Friendly Scalable Manufacturing Silver Transparent Сonductive Mesh and Silver Micro Caps, in One Technological Cycle for Efficient EMI Shielding Materials for 5G Communications

Eco-Friendly Scalable Manufacturing Silver Transparent Сonductive Mesh and Silver Micro Caps, in One Technological Cycle for Efficient EMI Shielding Materials for 5G Communications

Optically Transparent and Highly Conductive Electrodes for Acousto-Optical Devices

Acousto-Optical Spectral Technologies

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