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Electric-magnetic dual-gradient structure design of thin MXene/Fe3O4 films for absorption-dominated electromagnetic interference shielding.
Zhang, Hongwei; Cheng, Jiazhe; Liu, Kaiyu; Jiang, Shou-Xiang; Zhang, Jichao; Wang, Qian; Lan, Chuntao; Jia, Hao; Li, Zhaoling.
Afiliación
  • Zhang H; School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China.
  • Cheng J; School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China.
  • Liu K; School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China.
  • Jiang SX; School of Fashion and Textiles, The Hong Kong Polytechnic University, Hong Kong 999077, China; Research Institute for Intelligent Wearable Systems, The Hong Kong Polytechnic University, Hong Kong, China.
  • Zhang J; School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China.
  • Wang Q; School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China.
  • Lan C; College of Textile and Garment, Nantong University, Nantong 226019, China. Electronic address: chuntaolan@outlook.com.
  • Jia H; School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China; College of Textile& Garment, Shaoxing University, Shaoxing 312099, China. Electronic address: jiahao@jiangnan.edu.cn.
  • Li Z; Shanghai Frontier Science Research Center for Modern Textiles, College of Textiles, Donghua University, Shanghai 201620, China. Electronic address: zli@dhu.edu.cn.
J Colloid Interface Sci ; 678(Pt A): 950-958, 2024 Aug 27.
Article en En | MEDLINE | ID: mdl-39226835
ABSTRACT
The challenge of achieving high-performance electromagnetic interference (EMI) shielding films, which focuses on electromagnetic waves absorption while maintaining thin thickness, is a crucial endeavor in contemporary electronic device advancement. In this study, we have successfully engineered hybrid films based on MXene nanosheets and Fe3O4 nanoparticles, featuring intricate electric-magnetic dual-gradient structures. Through the collaborative influence of a unique dual-gradient structure equipped with transition and reflection layers, these hybrid films demonstrate favorable impedance matching, abundant loss mechanisms (Ohmic loss, interfacial polarization and magnetic loss), and an "absorb-reflect-reabsorb" process to achieve absorption-dominated EMI shielding capability. Compared with the single conductive gradient structure, the dual-gradient structure effectively enhances the absorption intensity per unit thickness, and thus reduces the thickness of the film. The optimized film demonstrates a remarkable EMI shielding effectiveness (SE) of 49.98 dB alongside an enhanced absorption coefficient (A) of 0.51 with a thickness of only 180 µm. The thin films with a dual-gradient structure hold promise for crafting absorption-dominated electromagnetic shielding materials, highlighting the potential for advanced electromagnetic protection solutions.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos