Intelligent composite materials and devices are attracting a great interest owing to their potential impact on various future life applications. To meet the growing demand for multifunctional materials, the development and validation of visible sensing behavior is highly desirable, but the development of a single multifunctional wearable sensing material still remains a challenge to be achieved. To reach this goal, here we present a wearable intelligent fabric with piezoresistivity and mechanoluminescence ability based on a layer-structured graphene-based conductive cotton fabric and SrAl₂O₄:Eu²⁺, Dy³⁺/polyurethane foamed coating. The presence of the foamed coating structure endows the flexible composite fabric with a controllable positive/negative piezoresistivity (gauge factor from −2.5 to 17) and a bright mechanoluminescence ability that can be used in the darkness without additional batteries. Three-dimensional chromaticity diagrams have also been developed as advanced tools to quantitatively assess the luminescence, whose lightness, during the bending cycles, is highly repeatable with value in the range from ∼25 to ∼55. The multifunctional layered composite sensor provides multiple output signals which can be accurately recognized and assigned to independent triggering events, opening up new opportunities in advanced wearable devices based on commercial fabrics.

智能复合材料和设备因其对各种未来生活应用的潜在影响而引起了极大的兴趣。为了满足对多功能材料不断增长的需求，非常需要开发和验证可见传感行为，但开发单一的多功能可穿戴传感材料仍然是一个挑战。为了实现这一目标，我们在此提出了一种基于层状结构石墨烯导电棉织物和 SrAl ₂ O ₄ :Eu ²⁺ , Dy ^{3+的具有压阻性和机械发光能力的可穿戴智能织物}/聚氨酯发泡涂料。泡沫涂层结构的存在赋予柔性复合织物可控的正/负压阻（应变系数从-2.5到17）和明亮的机械发光能力，无需额外电池即可在黑暗中使用。三维色度图也被开发为定量评估发光的先进工具，其亮度在弯曲循环期间具有高度可重复性，其值在～25 至～55 范围内。多功能分层复合传感器提供多个输出信号，可以准确识别并分配给独立的触发事件，为基于商业织物的高级可穿戴设备开辟了新的机会。