Superhigh Electromagnetic Interference Shielding of Ultrathin Aligned Pristine Graphene Nanosheets Film

Abstract Ultrathin, lightweight, high‐strength, and thermally conductive electromagnetic interference (EMI) shielding materials with high shielding effectiveness (SE) are highly desired for next‐generation portable and wearable electronics. Pristine graphene (PG) has a great potential to meet all the above requirements, but the poor processability of PG nanosheets hinders its applications. Here, efficient synthesis of highly aligned laminated PG films and nacre‐like PG/polymer composites with a superhigh PG loading up to 90 wt% by a scanning centrifugal casting method is reported. Due to the PG‐nanosheets‐alignment‐induced high electrical conductivity and multiple internal reflections, such films show…

• NN
  National Natural Science Foundation of China

  Awards: 51325205, 51521091, U1704253, 51290273
• CA
  Chinese Academy of Sciences

  Award: ZDBS‐LY‐JSC027
• YI
  Youth Innovation Promotion Association of the Chinese Academy of Sciences

  Award: 51872295
• DA
  Development and Reform Commission of Shenzhen Municipality
• NK
  National Key Research and Development Program of China

  Award: 2016YFA0200101