【摘要】 随着人们对柔性电子设备的需求不断增加,如何制备高性能的柔性应变传感器引起了学界的广泛关注,但至今柔性应变传感器很难兼顾高灵敏度和宽应变范围。为解决上述问题,采用聚合物金属化的方法制备了基于银纳米粒子(Ag nanoparticles, Ag NPs)/聚酰胺酸(polyamic acid, PAA)复合结构的柔性应变传感器,用于同时监测细微扰动和宽应变的情况。其敏感层为将Ag NPs嵌合于PAA内的复合薄膜,所制备的Ag NPs/PAA应变传感器的最高灵敏度为10.96,应变范围为1%～11%。通过8 000次拉伸/释放测试,结果表明该传感器具备高耐久性和高稳定性。所制备的多组传感器在相同的制备工艺下,表现出较好的一致性和可重复性。更多还原

【Abstract】 With the growing demand for flexible electronic devices, strain sensors with high performance have attracted more and more attention. However, it is difficult to balance high sensitivity and wide strain range, and most of strain sensors cannot meet the diverse demands simultaneously. In this study, Ag nanoparticles(Ag NPs)/polyamic acid(PAA) strain sensor is developed for simultaneously detecting subtle and intensive motions. The sensitive layer is a composite film of Ag NPs embedded in PAA, which endows the strain sensor with many excellent performances. The maximum sensitivity of the Ag NPs/PAA strain sensor is 10.96, and the strain range is 1%～11%. And 8 000 times stretching/release tests indicate that the high durability and stability of the sensor has been achieved. The excellent consistency and repeatability of the fabrication process is confirmed.更多还原