Simultaneous monitoring of human motion and collecting ambient energy are important for the development of personal healthcare monitoring and artificial intelligence. Here, a flexible and stretchable coaxial triboelectric nanogenerator (TENG) yarn is designed and fabricated by using coil spring as the inner support layer and mechanoluminescent ZnS:Cu/PDMS composite as the outer friction layer. By weaving coaxial TENG yarns, or mix-weaving with other yarns, a multifunctional TENG fabric can be manufactured for energy harvesting external mechanical energy from human motion or ambient environment. More important, it can self-powered sense human motion in both electrical (through TENG) and optical (from mechanoluminescent ZnS:Cu/PDMS composite) methods. This work provides a new strategy for wearable TENG fabrics with dual-mode sensing and energy harvesting which have potential applications in long-term medical monitoring and human-machine interaction systems.

同时监视人体运动和收集环境能量对于个人医疗保健监视和人工智能的发展很重要。在此，以螺旋弹簧为内支撑层，并以机械发光的ZnS：Cu / PDMS复合材料为外摩擦层，设计并制造了可挠曲且可拉伸的同轴摩擦纳米发电机（TENG）纱线。通过编织同轴的TENG纱线，或与其他纱线混合编织，可以制造出多功能的TENG织物，用于从人体运动或周围环境中收集外部机械能。更重要的是，它可以通过电动（通过TENG）和光学（通过机械发光ZnS：Cu / PDMS复合材料）方法自供电感应人体运动。