scholarly journals Pattern randomization: an efficient way to design high-performance metallic meshes with uniform stray light for EMI shielding

2020 ◽  
Vol 28 (5) ◽  
pp. 7008 ◽  
Author(s):  
Hui Zhong ◽  
Yu Han ◽  
Jie Lin ◽  
Peng Jin
Keyword(s):  
High Performance ◽  
Stray Light ◽  
Emi Shielding ◽  
Metallic Meshes

scholarly journals Robust, flexible, and high-performance electromagnetic interference shielding films with long-lasting service

RSC Advances ◽  
2021 ◽  
Vol 11 (30) ◽  
pp. 18476-18482
Author(s):  
Licui Wang ◽  
Zhaoxin Xie ◽  
Yanhu Zhan ◽  
Xuehui Hao ◽  
Yanyan Meng ◽  
...  
Keyword(s):  
Electromagnetic Interference ◽  
High Performance ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding

It is of great significance for electromagnetic interference (EMI) shielding materials to fulfill long-lasting service requirements.

scholarly journals Direct Ink Writing of Highly Conductive MXene Frames for Tunable Electromagnetic Interference Shielding and Electromagnetic Wave-Induced Thermochromism

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Xinyu Wu ◽  
Tingxiang Tu ◽  
Yang Dai ◽  
Pingping Tang ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Electromagnetic Wave ◽  
Electromagnetic Interference ◽  
High Performance ◽  
Normal Operation ◽  
List Type ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Direct Ink Writing ◽  
Aluminum Ions ◽  
Wave Induced

Highlights 3D printing of MXene frames with tunable electromagnetic interference shielding efficiency is demonstrated. Highly conductive MXene frames are reinforced by cross-linking with aluminum ions. Electromagnetic wave is visualized by electromagnetic-thermochromic MXene patterns. Abstract The highly integrated and miniaturized next-generation electronic products call for high-performance electromagnetic interference (EMI) shielding materials to assure the normal operation of their closely assembled components. However, the most current techniques are not adequate for the fabrication of shielding materials with programmable structure and controllable shielding efficiency. Herein, we demonstrate the direct ink writing of robust and highly conductive Ti3C2Tx MXene frames with customizable structures by using MXene/AlOOH inks for tunable EMI shielding and electromagnetic wave-induced thermochromism applications. The as-printed frames are reinforced by immersing in AlCl3/HCl solution to remove the electrically insulating AlOOH nanoparticles, as well as cross-link the MXene sheets and fuse the filament interfaces with aluminum ions. After freeze-drying, the resultant robust and porous MXene frames exhibit tunable EMI shielding efficiencies in the range of 25–80 dB with the highest electrical conductivity of 5323 S m−1. Furthermore, an electromagnetic wave-induced thermochromic MXene pattern is assembled by coating and curing with thermochromic polydimethylsiloxane on a printed MXene pattern, and its color can be changed from blue to red under the high-intensity electromagnetic irradiation. This work demonstrates a direct ink printing of customizable EMI frames and patterns for tuning EMI shielding efficiency and visualizing electromagnetic waves.

scholarly journals Ultrathin, Lightweight, and Flexible CNT Buckypaper Enhanced Using MXenes for Electromagnetic Interference Shielding

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Rongliang Yang ◽  
Xuchun Gui ◽  
Li Yao ◽  
Qingmei Hu ◽  
Leilei Yang ◽  
...  
Keyword(s):  
Electromagnetic Interference ◽  
High Performance ◽  
Electronic Devices ◽  
Deposition Process ◽  
Shielding Effectiveness ◽  
Emi Shielding ◽  
Emi Shielding Effectiveness ◽  
X Band ◽  
Wearable Electronic Devices ◽  
Emi Se

AbstractLightweight, flexibility, and low thickness are urgent requirements for next-generation high-performance electromagnetic interference (EMI) shielding materials for catering to the demand for smart and wearable electronic devices. Although several efforts have focused on constructing porous and flexible conductive films or aerogels, few studies have achieved a balance in terms of density, thickness, flexibility, and EMI shielding effectiveness (SE). Herein, an ultrathin, lightweight, and flexible carbon nanotube (CNT) buckypaper enhanced using MXenes (Ti3C2Tx) for high-performance EMI shielding is synthesized through a facile electrophoretic deposition process. The obtained Ti3C2Tx@CNT hybrid buckypaper exhibits an outstanding EMI SE of 60.5 dB in the X-band at 100 μm. The hybrid buckypaper with an MXene content of 49.4 wt% exhibits an EMI SE of 50.4 dB in the X-band with a thickness of only 15 μm, which is 105% higher than that of pristine CNT buckypaper. Furthermore, an average specific SE value of 5.7 × 104 dB cm2 g−1 is exhibited in the 5-μm hybrid buckypaper. Thus, this assembly process proves promising for the construction of ultrathin, flexible, and high-performance EMI shielding films for application in electronic devices and wireless communications.

Optical design of high performance con-focal microscopy with digital micro-mirror and stray light filters

Optik ◽  
2010 ◽  
Vol 121 (22) ◽  
pp. 2073-2079 ◽  
Author(s):  
Chuan-Cheng Hung ◽  
Yi-Chin Fang ◽  
Cheng-Mu Tsai ◽  
Chang-Ching Lin ◽  
Koung-Ming Yeh ◽  
...  
Keyword(s):  
High Performance ◽  
Optical Design ◽  
Stray Light ◽  
Light Filters

scholarly journals Facile approach for a robust graphene/silver nanowires aerogel with high-performance electromagnetic interference shielding

RSC Advances ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 27-33 ◽  
Author(s):  
Xiaoting Liu ◽  
Tianrui Chen ◽  
Hao Liang ◽  
Faxiang Qin ◽  
Hui Yang ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Electrical Properties ◽  
Electromagnetic Interference ◽  
High Performance ◽  
Silver Nanowires ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
High Compressive Strength

We report a facile, eco-friendly approach to prepare the robust graphene/silver nanowires aerogel with high compressive strength and excellent EMI shielding performance due to its unique nanostructure and good electrical properties.

Nanostructured cigarette wrapper encapsulated PDMS‐RGO sandwiched composite for high performance EMI shielding applications

2020 ◽  
Vol 60 (12) ◽  
pp. 3056-3071
Author(s):  
Anurima De ◽  
Ranadip Bera ◽  
Sarbaranjan Paria ◽  
Sumanta Kumar Karan ◽  
Amit Kumar Das ◽  
...  
Keyword(s):  
High Performance ◽  
Emi Shielding

Nickel Nanoparticle-Filled High-Performance Polymeric Nanocomposites for EMI Shielding Applications

2019 ◽  
Vol 49 (3) ◽  
pp. 1630-1637 ◽  
Author(s):  
Sampada Viraj Dravid ◽  
Shubham Dinkar Bhosale ◽  
Suwarna Datar ◽  
R. K. Goyal
Keyword(s):  
High Performance ◽  
Polymeric Nanocomposites ◽  
Emi Shielding ◽  
Nickel Nanoparticle

Forward Degenerate Four-Wave Mixing as a Detection Method in Liquid Separation Systems: Improving Detection Limits by Means of a Fabry—Perot Interferometer

1997 ◽  
Vol 51 (7) ◽  
pp. 1008-1011 ◽  
Author(s):  
Gerard Ph. Hoornweg ◽  
Tjipke De Beer ◽  
Nel H. Velthorst ◽  
Cees Gooijer
Keyword(s):  
High Performance ◽  
Limit Of Detection ◽  
Signal To Noise Ratio ◽  
Four Wave Mixing ◽  
Laser Wavelength ◽  
Stray Light ◽  
Concentration Limit ◽  
Wave Mixing ◽  
Fabry Perot ◽  
Degenerate Four Wave Mixing

A simple, small, and low-resolution confocal Fabry–Perot interferometer (CFP) has been developed to improve the signal-to-noise ratio (S/N) in forward degenerate four-wave mixing (F-D4WM) detection, coupled to high-performance liquid chromatography (HPLC). Its appropriateness is based on the difference in coherence between the F-D4WM signal and the background stray light. A detailed description of the specially designed CFP and its performance is presented. The improvement in S/N was calculated from the chromatographic peaks recorded after an HPLC separation of 1- and 2-aminoanthraquinone. The concentration limit of detection (LOD) was improved by a factor of 30; for 1-aminoanthraquinone it was 2 × 10−8 M injected (corresponding to about 3 × 10−9 M in the detector cell), which is quite favorable in view of its low molar extinction coefficient being 2000 M−1 cm−1 at the utilized laser wavelength (514.5 nm).

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