Infrared-transparent films based on conductive graphene network fabrics for electromagnetic shielding

Han, Jiecai; Wang, Xiaona; Qiu, Yunfeng; Zhu, Jiaqi; Hu, PingAn

doi:10.1016/j.carbon.2015.01.057

Cited by 83 publications

(44 citation statements)

References 50 publications

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“…High optical transmittance and strong EMI shielding effectiveness (SE) are the two basic requirements that drive the development of transparent EMI shielding materials for practical applications 6 7 8 9 . More importantly, under harsh environments, transparent EMI shielding materials with a broadband transmission spectrum (Vis-IR) and stable imaging quality are attractive for a wide range of civil, commercial, military, and aerospace applications (e.g., electro-optical sensor pods) 10 11 . Practical applications also call for good scalability and low cost fabrication techniques.…”

mentioning

confidence: 99%

Crackle template based metallic mesh with highly homogeneous light transmission for high-performance transparent EMI shielding

Han

Lin

Liu

et al. 2016

Sci Rep

105

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Our daily electromagnetic environment is becoming increasingly complex with the rapid development of consumer electronics and wireless communication technologies, which in turn necessitates the development of electromagnetic interference (EMI) shielding, especially for transparent components. We engineered a transparent EMI shielding film with crack-template based metallic mesh (CT-MM) that shows highly homogeneous light transmission and strong microwave shielding efficacy. The CT-MM film is fabricated using a cost-effective lift-off method based on a crackle template. It achieves a shielding effectiveness of ~26 dB, optical transmittance of ~91% and negligible impact on optical imaging performance. Moreover, high–quality CT-MM film is demonstrated on a large–calibre spherical surface. These excellent properties of CT-MM film, together with its advantages of facile large-area fabrication and scalability in processing on multi-shaped substrates, make CT-MM a powerful technology for transparent EMI shielding in practical applications.

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mentioning

confidence: 99%

Crackle template based metallic mesh with highly homogeneous light transmission for high-performance transparent EMI shielding

Han

Lin

Liu

et al. 2016

Sci Rep

105

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“…Furthermore, the employment of superhydrophobic treatment has a positive influence on the EMI SE. When composed of a higher density, the fabrics have a smaller porosity and greater EMI SE [30,31]. After the superhydrophobic treatment, the fabrics are enwrapped in transparent films that decrease the distance among fibers to a certain extent and thus strengthens the EMI SE of the conductive fabrics.…”

Section: Emi Shielding Effectiveness Of Conductive Fabricsmentioning

confidence: 99%

Superhydrophobic/Flame Retardant/EMI Shielding Fabrics: Manufacturing Techniques and Property Evaluations

Peng

Wang

et al. 2019

Applied Sciences

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Electromagnetic pollution interferes with electronic equipment in proximity and jeopardizes human health, which urges the development of electromagnetic interference (EMI) shielding materials. It is urgent to develop electromagnetic interference (EMI) shielding materials. However, the preparation of materials with superhydrophobicity, flame retardancy and EMI shielding properties is still challenging. In this study, we invented a core-spun yarn feeding device, which uses polysulfonamide (PSA) roving as a coating material and stainless steel wire as the core material to prepare a conductive core-spun yarn, which solves the problem of the wire having an easily exposed fabric surface. The finally prepared conductive fabric was subjected to Waterproof 2P hydrophobic treatment to form a superhydrophobic flame-retardant EMI shielding fabric. The results show that the hydrophobic treatment creates a thin film over the woven fabrics, and the contact angle of the fabric surface can reach 155°. The hydrophobic treatment will not damage the shielding effect and slightly increase the dB value. The average dB value of PSA-SS-1’ and PSA-SS-2’ are increased by 0.82 dB and 1.92 dB, respectively. When composed of conductive wrapped yarns for both the warp and weft yarns, the electromagnetic interference shielding effectiveness (EMI SE) of conductive fabrics is beyond 30 dB at 0–3000 MHz and the burnt depth is shorter than 40 mm. As for real applications, superhydrophobic/flame retardant/EMI SE fabrics can be used in a moist and complex environment with retaining conductivity and shielding effectiveness.

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“…Another method that has been applied for the synthesis of G-based fabrics is the production of graphene woven fabrics [86][87][88][89][90][91][92][93][94][95][96][97][98][99][100][101]. This method consists in growing G coating on a metallic mesh (normally Cu) by CVD ( Fig.…”

Section: Graphene Woven Fabricsmentioning

confidence: 99%

“…Han et al [96] employed the GWFs for obtaining IR transparent and conducting materials that were applied for electromagnetic shielding. The influence of square aperture and wire width of the mesh on the optical transmittance, electromagnetic shielding and conductivity was evaluated.…”

Section: Electromagnetic Shieldingmentioning

confidence: 99%

Graphene-based fabrics and their applications: a review

Molina

2016

RSC Adv.

122

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Graphene has emerged as a revolutionary material in different fields of science and engineering due to its extraordinary properties such as: high electron mobility, high thermal conductivity, mechanical properties, easy functionalization, etc. The field of textiles is continuously integrating new materials to provide fabrics with new functionalities, hence its incorporation on fabrics was a logical step. Its application to the field of textiles has been recently reported, which has allowed the development of textiles with different functionalities such as: antistatic, UV-protecting, electroconductive, photocatalytic, antibacterial, energy storage in supercapacitors, electrodes for batteries, thermal conductivity, sensors, etc. Up to date no review has been written regarding graphene-based fabrics and their applications. The present review aims to fill the existing gap and provide perspectives into the preparation and applications of graphene-based fabrics and yarns. Abbreviations:AQSA: anthraquinone-2-sulfonic acid sodium salt monohydrate, APS: ammonium persulphate, BN: boron nitride, BSA: bovine serum albumin, CNT: carbon nanotube, CV: cyclic voltammetry,

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Infrared-transparent films based on conductive graphene network fabrics for electromagnetic shielding

Cited by 83 publications

References 50 publications

Crackle template based metallic mesh with highly homogeneous light transmission for high-performance transparent EMI shielding

Crackle template based metallic mesh with highly homogeneous light transmission for high-performance transparent EMI shielding

Superhydrophobic/Flame Retardant/EMI Shielding Fabrics: Manufacturing Techniques and Property Evaluations

Graphene-based fabrics and their applications: a review

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