In this work, we present efficient, robust, and transparent electromagnetic interference (EMI) shielding by a hybrid material comprised of a nickel (Ni) mesh and a conformal graphene coating. We demonstrate that a 20 nm-thick graphene/Ni hybrid mesh can provide EMI shielding effectiveness (SE) exceeding 12.1 dB (∼93.6% power attenuation) in the decimeter band while retaining a high visible transmittance of ∼83%. Its maximum achieved SE value was 26.6 dB (∼99.5% power attenuation) at 0.75 GHz. Furthermore, the thicker Ni mesh exhibited a higher EMI SE. Compared to a conventional Ni mesh, the hybrid mesh exhibits a higher SE and a greatly improved corrosion resistance. The graphene coating is directly grown on a Ni mesh via rapid annealing of solid carbon precursors under low vacuum. Scalable fabrication of the mesh was achieved by a self-formed TiO₂ crack network template. Our results not only provide a promising material for high-performance EMI shielding in optoelectronics devices but also enable applications of EMI shielding in harsh environments.

中文翻译：

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透明石墨烯/镍网薄膜的电磁干扰屏蔽

在这项工作中，我们通过由镍（Ni）网格和保形石墨烯涂层组成的混合材料，提供了高效，坚固且透明的电磁干扰（EMI）屏蔽。我们证明，厚度为20 nm的石墨烯/ Ni混合网状物可以在分米带中提供超过12.1 dB（约93.6％的功率衰减）的EMI屏蔽效果（SE），同时保留约83％的高可见光透射率。在0.75 GHz时，其最大SE值达到26.6 dB（约99.5％的功率衰减）。此外，较厚的镍网表现出较高的EMI SE。与传统的镍网相比，混合网具有更高的SE和大大提高的耐腐蚀性。通过在低真空下对固体碳前驱体进行快速退火，可在Ni网上直接生长石墨烯涂层。通过自形成的TiO可以实现网格的可扩展制造₂破解网络模板。我们的结果不仅为光电子器件中的高性能EMI屏蔽提供了有希望的材料，而且还使EMI屏蔽能够在恶劣的环境中应用。