Recent advances in 3D printed structures for electromagnetic wave absorbing and shielding

Zhou, Siyuan; Zhang, Hang; Nie, Zeqi; Liu, Huaizhi; Yu, Huihuang; Liu, Yexin; Bi, Kaixi; Geng, Wenping; Duan, Huigao; Chou, Xiujian

doi:10.1039/d2qm00223j

Cited by 24 publications

(10 citation statements)

References 173 publications

(209 reference statements)

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“…The total electromagnetic shielding effectiveness (SET) is usually composed of reflected shielding effectiveness (SE R ), absorbed shielding effectiveness (SE A ), and multiple reflections (SE M ), and the SE R and SE A are obtained by calculating the S -parameters measured using a vector network analyzer (VNA) based on the following equations. 94 R = S 11 2 = S 22 2 T = S 12 2 = S 21 2 A = 1 − R − T where R , T , and A represent reflected power, transmitted power, and absorbed power, respectively. Their sum is equal to the incident power.…”

Section: The Basic Principle Of Electromagnetic Interference Shieldingmentioning

confidence: 99%

Advancements in 3D-printed architectures for electromagnetic interference shields

Zhang,

Wang,

Xie

et al. 2024

J. Mater. Chem. A

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Section: The Basic Principle Of Electromagnetic Interference Shieldingmentioning

confidence: 99%

Advancements in 3D-printed architectures for electromagnetic interference shields

Zhang,

Wang,

Xie

et al. 2024

J. Mater. Chem. A

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“…The solidification of the extruding ink can occur by freeze‐drying and/or supercritical drying. [ 94 ] Wu et al produced robust and conductive MXene 3D frames with printable Ti 3 C 2 T x /AlOOH inks. [ 95 ] The printed frameworks were freeze‐dried after the removal of electrically insulating AlOOH nanoparticles by immersion in AlCl 3 /HCl solution, and the resulting robust and porous MXene frameworks exhibited tuned EMI SE in the range of 25–80 dB by adjusting printing parameters.…”

Section: Processing Strategies For Emi Shielding Mxene‐based Materialsmentioning

confidence: 99%

Structure Design and Processing Strategies of MXene‐Based Materials for Electromagnetic Interference Shielding

et al. 2023

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The development of new materials for electromagnetic interference (EMI) shielding is an important area of research, as it allows for the creation of more effective and high‐efficient shielding solutions. In this sense, MXenes, a class of 2D transition metal carbides and nitrides have exhibited promising performances as EMI shielding materials. Electric conductivity, low density, and flexibility are some of the properties given by MXene materials, which make them very attractive in the field. Different processing techniques have been employed to produce MXene‐based materials with EMI shielding properties. This review summarizes processes and the role of key parameters like the content of fillers and thickness in the desired EMI shielding performance. It also discusses the determination of power coefficients in defining the EMI shielding mechanism and the concept of green shielding materials, as well as their influence on the real application of a produced material. The review concludes with a summary of current challenges and prospects in the production of MXene materials as EMI shields.

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“…Printing technology with a high degree of design freedom holds great potential for scalable and customized production of flexible electronics, , EM devices, and EMI shielding materials. − Specifically, the printing technique can produce EMI shielding materials with customized sizes, shapes, and configurations. It allows for the fabrication of complex cross-scale hierarchical structures for exceptional EMI shielding performance and other functionalities.…”

Section: Introductionmentioning

confidence: 99%

High-Precision Printing of Flexible MXene Patterns for Dynamically Tunable Electromagnetic Interference Shielding Performance

Li,

Qi,

Chen

et al. 2024

ACS Appl. Mater. Interfaces

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Smart electromagnetic interference (EMI) shielding materials are of great significance in coping with the dynamic performance demands of cutting-edge electronic devices. However, smart EMI shielding materials are still in their infancy and face a variety of challenges (e.g., large thickness, limited tunable range, poor reversibility, and unclear mechanisms). Here, we report a method for controllable shielding electromagnetic (EM) waves through subwavelength structure changes regulated by the customized structure via a direct printing route. The highly conductive MXene ink is regulated with metal ions (Al3+ ions), giving superb metallic conductivity (∼5000 S cm–1) for the printed lines without an annealing treatment. The reversible tunability of EMI shielding effectiveness (SE) ranging from 8.2 dB (“off” state) to 34 dB (“on” state) is realized through the controllable modulation of subwavelength structure driven by stress. This work provides a feasible strategy to develop intelligent shielding materials and EM devices.

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Recent advances in 3D printed structures for electromagnetic wave absorbing and shielding

Abstract: The rapid development and widespread application of electronic devices and technologies are witnessed in recent years, while they also bring ever-increasing electromagnetic pollution to human being’s healthy and device reliability....

Cited by 24 publications

References 173 publications

Advancements in 3D-printed architectures for electromagnetic interference shields

Advancements in 3D-printed architectures for electromagnetic interference shields

Structure Design and Processing Strategies of MXene‐Based Materials for Electromagnetic Interference Shielding

High-Precision Printing of Flexible MXene Patterns for Dynamically Tunable Electromagnetic Interference Shielding Performance

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