Conducting graphene-based hybrids have attracted considerable attention in recent years for their scientific and technological significance in many applications. In this work, conductive graphene hybrid films, consisting of a metallic network fully encapsulated between monolayer graphene and quartz–glass substrate, were fabricated and characterized for their electromagnetic interference shielding capabilities. Experimental results show that by integration with a metallic network the sheet resistance of graphene was significantly suppressed from 813.27 to 5.53 Ω/sq with an optical transmittance at 91%. Consequently, the microwave shielding effectiveness (SE) exceeded 23.60 dB at the K_u-band and 13.48 dB at the K_a-band. The maximum SE value was 28.91 dB at 12 GHz. Compared with the SE of pristine monolayer graphene (3.46 dB), the SE of graphene hybrid film was enhanced by 25.45 dB (99.7% energy attenuation). At 94% optical transmittance, the sheet resistance was 20.67 Ω/sq and the maximum SE value was 20.86 dB at 12 GHz. Our results show that hybrid graphene films incorporate both high conductivity and superior electromagnetic shielding comparable to existing ITO shielding modalities. The combination of high conductivity and shielding along with the materials’ earth-abundant nature, and facile large-scale fabrication, make these graphene hybrid films highly attractive for transparent EMI shielding.

中文翻译：

---

透明导电石墨烯杂化膜可改善石墨烯的电磁干扰（EMI）屏蔽性能

近年来，导电石墨烯基杂化物因其在许多应用中的科学技术意义而引起了相当大的关注。在这项工作中，制造了导电石墨烯杂化膜，该杂化膜由完全包裹在单层石墨烯和石英玻璃基板之间的金属网络组成，并具有电磁干扰屏蔽功能。实验结果表明，通过与金属网络的集成，石墨烯的薄层电阻从813.27显着降低到5.53Ω/ sq，光透射率为91％。因此，微波屏蔽效能（SE）超过23.60分贝在ķ _ù波段和13.48分贝在ķ_一个-乐队。在12 GHz时，最大SE值为28.91 dB。与原始单层石墨烯的SE（3.46 dB）相比，石墨烯杂化膜的SE提高了25.45 dB（能量衰减为99.7％）。在94％的光学透射率下，薄层电阻为20.67Ω/ sq，在12 GHz时最大SE值为20.86 dB。我们的结果表明，与现有的ITO屏蔽方式相比，混合石墨烯薄膜兼具高导电性和出色的电磁屏蔽性能。高电导率和屏蔽以及材料的地球丰富特性以及便捷的大规模制造相结合，使得这些石墨烯杂化膜对透明EMI屏蔽极具吸引力。