Graphene has great potential in wearable sensors. However, the sensing selectivity of graphene‐based sensors is still a big challenge, limiting their application in the multifunctional sensors. Herein, different types and distributions of defects are introduced into graphene by femtosecond laser patterning to realize sensing selectivity for wearable multifunctional sensors. The imperfect graphene with four pattern arrays, circle, square, triangle, and hexagon with none, right, acute, and obtuse angle, is fabricated by laser to control the types and distributions of defects. The graphene with different patterns shows remarkable sensing selectivity, owing to the dangling bonds and vacancies on the edge of patterns. The graphene‐based sensor with the circle pattern array is used to detect the strain variation; the triangle one is for temperature detection; and the hexagon one can collect the information of gas. The gauge factor is demonstrated to be as high as ≈10⁴. The as‐produced sensor with the above‐mentioned four patterns can simultaneously detect body pulse, temperature, and harmful gas by attaching to human body or clothes, offering real‐time health monitoring and protection. The patterned graphene‐based sensors with high sensing selectivity are expected to develop multifunctional sensor platform and versatile artificial electronic skin.

中文翻译：

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飞秒激光加工对可穿戴多功能传感器中石墨烯的方向指示选择性

石墨烯在可穿戴传感器中具有巨大潜力。但是，基于石墨烯的传感器的选择性仍然是一个很大的挑战，限制了它们在多功能传感器中的应用。在此，通过飞秒激光图案化将不同类型和分布的缺陷引入石墨烯，以实现可穿戴多功能传感器的感测选择性。通过激光控制缺陷的类型和分布，制作了具有四个图案阵列（圆形，正方形，三角形和六边形，无，直角，锐角和钝角）的不完美石墨烯。由于图案边缘的悬空键和空位，具有不同图案的石墨烯显示出显着的感测选择性。带有圆形图案阵列的基于石墨烯的传感器用于检测应变变化。三角形一用于温度检测。六角形可以收集气体信息。规格系数被证明高达≈10⁴。具有上述四种模式的传感器可以通过附着在人体或衣服上同时检测人体脉搏，温度和有害气体，从而提供实时的健康监测和保护。具有高传感选择性的基于图案化石墨烯的传感器有望开发出多功能传感器平台和多功能人造电子皮肤。