Ultra‑Broadband and Ultra-High Electromagnetic Interference Shielding Performance of Aligned and Compact MXene Films

被引：0

作者：

Weiqiang Huang ^{[1
]}

Xuebin Liu ^{[1
]}

Yunfan Wang ^{[1
]}

Jiyong Feng ^{[1
]}

Junhua Huang ^{[1
]}

Zhenxi Dai ^{[1
]}

Shaodian Yang ^{[1
]}

Songfeng Pei ^{[2
]}

Jing Zhong ^{[3
]}

Xuchun Gui ^{[4
]}

机构：

[1] State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou

[2] National Key Laboratory of Materials for Integrated Circuits, Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen

[3] Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang

[4] School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang

[5] Key Lab of Structure Dynamic Behavior and Control (Harbin Institute of Technology), Ministry of Education, Harbin

来源：

Nano-Micro Letters | 2025年 / 17卷 / 1期

基金：

中国国家自然科学基金;

关键词：

Electrical heater; Electromagnetic interference shielding; Infrared stealth; MXene Film;

D O I：

10.1007/s40820-025-01750-z

中图分类号：

学科分类号：

摘要：

With the rapid development of electronic detective techniques, there is an urgent need for broadband (from microwave to infrared) stealth of aerospace equipment. However, achieving effective broadband stealth primarily relies on the composite of multi-layer coatings of different materials, while realizing broadband stealth with a single material remains a significant challenge. Herein, we reported a highly compact MXene film with aligned nanosheets through a continuous centrifugal spraying strategy. The film exhibits an exceptional electromagnetic interference shielding effectiveness of 45 dB in gigahertz band (8.2–40 GHz) and 59 dB in terahertz band (0.2–1.6 THz) at a thickness of 2.25 μm, owing to the high conductivity (1.03 × 106 S m−1). Moreover, exceptionally high specific shielding effectiveness of 1.545 × 106 dB cm2 g⁻1 has been demonstrated by the film, which is the highest value reported for shielding films. Additionally, the film exhibits an ultra-low infrared emissivity of 0.1 in the wide-range infrared band (2.5–16.0 μm), indicating its excellent infrared stealth performance for day-/nighttime outdoor environments. Moreover, the film demonstrates efficient electrothermal performance, including a high saturated temperature (over 120 °C at 1.0 V), a high heating rate (4.4 °C s−1 at 1.0 V), and a stable and uniform heating distribution. Therefore, this work provides a promising strategy for protecting equipment from multispectral electromagnetic interference and inhibiting infrared detection. (Figure presented.) © The Author(s) 2025.

引用

共 57 条

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