Flexible and wearable electromagnetic interference (EMI) shielding material is one of the current research focuses in the field of EMI shielding. In this work, for the first time, WS₂-carbon fiber (WS₂-CF) composites are synthesized by implanting WS₂, which has a multiphase structure and a large number of defects, onto the surface of carbon fiber (CF) by using a simple one-step hydrothermal method, and are applied to protect electronic devices from EMI. It is found that the EMI shielding performance of WS₂-CF is significantly improved, especially for those at S and C-bands. At 2 GHz, the EMI shielding efficiency could reach 36.0 dB at a typical thickness of 3.00 mm of the composite, which is much better than that of pure CF (25.5 dB). Besides paving a novel avenue to optimize the electromagnetic shielding performance of flexible and wearable CF-based EMI shielding materials, which have great potential in the practical application for EMI shielding, this work provides a new paradigm for the design and synthesis of EMI shielding materials which have a broad application prospect.

柔性可穿戴电磁干扰（EMI）屏蔽材料是目前EMI屏蔽领域的研究热点之一。本工作首次将具有多相结构和大量缺陷的WS _{2植入碳纤维（CF）表面，合成了WS 2} -碳纤维（WS ₂ -CF）复合材料。采用简单的一步水热法，用于保护电子设备免受电磁干扰。发现 WS ₂ -CF 的 EMI 屏蔽性能显着提高，尤其是在 S和 C 波段。在 2 GHz 时，复合材料典型厚度为 3.00 mm 时，EMI 屏蔽效率可达到 36.0 dB，远优于纯 CF（25.5 dB）。除了为优化柔性和可穿戴C​​F基EMI屏蔽材料的电磁屏蔽性能开辟了一条新途径，该材料在EMI屏蔽的实际应用中具有巨大的潜力，这项工作为EMI屏蔽材料的设计和合成提供了新的范式。具有广阔的应用前景。