Design of artificial nacre-like hybrid films as shielding to mitigate electromagnetic pollution

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Author(s)

  • Bihe Yuan
  • Chenlu Bao
  • Xiaodong Qian
  • Lei Song
  • Qilong Tai
  • Yuan Hu

Detail(s)

Original languageEnglish
Pages (from-to)178-189
Journal / PublicationCarbon
Volume75
Early online date4 Apr 2014
Publication statusPublished - Aug 2014

Abstract

Multifunctional designs of biomimetic layered materials are in great demand for broadening their applications. Artificial hybrid films are fabricated using a simple evaporation-induced assembly method, using nacre as the structural model, two-dimensional reduced graphene oxide (RGO) and magnetic graphene (MG) as inorganic building blocks and poly(vinyl alcohol) (PVA) as glue. The nacre-like films exhibit good mechanical performance, such as high stiffness, strength and toughness. The biomimetic materials possess the shielding properties of electromagnetic pollution. MG based nacre-like films present more significant electromagnetic interference (EMI) shielding performance than RGO film, because of a synergism between dielectric loss of graphene and magnetic loss of magnetic nanoparticles. Average EMI shielding effectiveness (SE) reaches ∼20.3 dB over the frequency range of 8.2-12.4 GHz (X band) for MG hybrid film only 0.36 mm thick. The lightweight, flexible and thin MG artificial hybrid films possess good potential for EMI shielding applications. © 2014 Elsevier Ltd. All rights reserved.

Citation Format(s)

Design of artificial nacre-like hybrid films as shielding to mitigate electromagnetic pollution. / Yuan, Bihe; Bao, Chenlu; Qian, Xiaodong; Song, Lei; Tai, Qilong; Liew, Kim Meow; Hu, Yuan.

In: Carbon, Vol. 75, 08.2014, p. 178-189.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review