Journal ArticleDOI
A Voltage-Boosting Strategy Enabling a Low-Frequency, Flexible Electromagnetic Wave Absorption Device.
Hualiang Lv,Hualiang Lv,Zhihong Yang,Paul Luyuan Wang,Guangbin Ji,Jizhong Song,Lirong Zheng,Haibo Zeng,Zhichuan J. Xu +8 more
TLDR
The method of utilizing an external voltage to break the intrinsic dielectric feature by modifying a traditional electronic absorption device is demonstrated for the first time and has great significance in solving the low-frequency electromagnetic interference issue.Abstract:
Nowadays, low-frequency electromagnetic interference (<2.0 GHz) remains a key core issue that plagues the effective attenuation performance of conventional absorption devices prepared via the component-morphology method (Strategy I). According to theoretical calculations, one fundamental solution is to develop a material that possesses a high e' but lower e″. Thus, it is attempted to control the dielectric values via applying an external electrical field, which inducts changes in the macrostructure toward a performance improvement (Strategy II). A sandwich-structured flexible electronic absorption device is designed using a carbon film electrode to conduct an external current. Simultaneously, an absorption layer that is highly responsive to an external voltage is selected via Strategy I. Relying on the synergistic effects from Strategies I and II, this device demonstrates an absorption value of more than 85% at 1.5-2.0 GHz with an applied voltage of 16 V while reducing the thickness to ≈5 mm. In addition, the device also shows a good absorption property at 25-150 °C. The method of utilizing an external voltage to break the intrinsic dielectric feature by modifying a traditional electronic absorption device is demonstrated for the first time and has great significance in solving the low-frequency electromagnetic interference issue.read more
Citations
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Journal ArticleDOI
2D MXenes: Electromagnetic property for microwave absorption and electromagnetic interference shielding
TL;DR: In this article, the state-of-the-art in electromagnetic wave absorbing and shielding of MXene-based matrials is evaluated and dissected, highlighting the major problems and bottlenecks.
Journal ArticleDOI
Self‐Assembly Core–Shell Graphene‐Bridged Hollow MXenes Spheres 3D Foam with Ultrahigh Specific EM Absorption Performance
Xinliang Li,Xiaowei Yin,Changqing Song,Meikang Han,Hailong Xu,Wenyan Duan,Laifei Cheng,Litong Zhang +7 more
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Multifunctional Organic–Inorganic Hybrid Aerogel for Self‐Cleaning, Heat‐Insulating, and Highly Efficient Microwave Absorbing Material
References
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Journal ArticleDOI
CoNi@SiO2@TiO2 and CoNi@Air@TiO2 Microspheres with Strong Wideband Microwave Absorption
TL;DR: Owing to the magnetic-dielectric synergistic effect, the obtained CoNi@SiO2 @TiO2 microspheres exhibit outstanding microwave absorption performance with a maximum reflection loss of -58.2 dB and wide bandwidth of 8.1 GHz.
Journal ArticleDOI
Boosted Charge Transfer in SnS/SnO2 Heterostructures: Toward High Rate Capability for Sodium‐Ion Batteries
Yang Zheng,Yang Zheng,Tengfei Zhou,Chaofeng Zhang,Jianfeng Mao,Hua-Kun Liu,Zaiping Guo,Zaiping Guo +7 more
TL;DR: Ultrafine SnS/SnO2 heterostructures were successfully fabricated and showed enhanced charge-transfer capability and the mobility enhancement is attributed to the interface effect of heterostructure, which induces an electric field within the nanocrystals, giving them much lower ion-diffusion resistance and facilitating interfacial electron transport.
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Three-dimensional reduced graphene oxide foam modified with ZnO nanowires for enhanced microwave absorption properties
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