自供电

Flexible optoelectronics based on inorganic functional components have attracted worldwide attention due to their inherent advantages. However, the power supply problem presents a significant obstacle to the commercialization of wearable optoelectronics. Triboelectric nanogenerator (TENG) technology has the potential to realize self-powered applications compared to the conventional charging technologies. Herein, a flexible self-powered blood oxygen monitoring system based on TENG was first demonstrated.

可穿戴电子技术的快速发展对供电设备提出了挑战。本文报道了一种可同时实现人体运动感知和生物力学能量采集的柔性单电极摩擦电纳米发电机( SE-TENG )。SE-TENG是由聚二甲基硅氧烷( PDMS )弹性体内互穿Ag包复聚对苯二甲酸乙二醇酯( PET )纳米纤维制备的。Ag涂层和PDMS分别作为SE-TENG的电极和介质材料。镀银PET纳米纤维增大了电极表面积，有利于提高传感灵敏度。柔性SE-TENG传感器具有输出开路电压高达50   V、短路电流高达200 nA的交变电信号的能力，响应外施压力。它用于感知人体各种类型的运动，从人体运动中收获电能。收获的能量可以成功地为可穿戴电子供电，如电子表和发光二极管。因此，制备的具有压力响应和自供电能力的SE-TENG传感器在可穿戴式传感器或柔性电子领域为个人医疗和人机界面提供了潜在的应用。\n在聚二甲基硅氧烷弹性体内互穿Ag包复纳米纤维，制备了柔性单电极摩擦电纳米发电机( SE-TENG )。SE-TENG表现出采集生物力学能量和产生电能的能力，使传感器能够感知人体运动或作为可穿戴电源。收集到的能量可以储存在商业电容器中，为LED和电子手表供电。