Controllable Multimodal Actuation in Fully Printed Ultrathin Micro-Patterned Electrochemical Actuators.
Controllable Multimodal Actuation in Fully Printed Ultrathin Micro-Patterned Electrochemical Actuators.
复制标题
全印刷超薄微图案电化学致动器中的可控多模式致动。
DOI：
10.1021/acsami.3c19006
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发表时间：
2024
影响因子：
9.5
通讯作者：
Zhang J
中科院分区：
文献类型：
--
作者：
Zhang J
亚毫米或微米级电控软驱动器在微型机器人、触觉和生物医学等领域有着巨大的应用潜力。然而，微型化和微图案化的露天软驱动器的制造仍然具有挑战性。在这项研究中，我们展示了一种横向分辨率为10μm的快速成型方法--气溶胶喷印技术在三层电化学致动器(ECA)的微制造中的应用。我们制作了全印刷的1000×5000×12μm~3超薄ECA，每个ECA由夹在两个聚(3，4-乙二氧基噻吩聚苯乙烯磺酸)电极层之间的Nafion电解层组成。ECA的启动是由于电场驱动的水合质子的迁移。由于厚度较小，导致质子传输长度和弯曲刚性较低，印刷的ECA可以在低电压(∼0.5V)下运行，并具有相对快速的响应(∼秒)。我们打印了由两个单独控制的亚毫米段组成的执行器的所有组件，并演示了其多模式驱动。我们的微制造策略的方便性、多功能性、快速性和低成本为未来在紧凑型可伸缩电子电路上集成复杂图案的单独控制的软微执行器阵列提供了发展前景。
Submillimeter or micrometer scale electrically controlled soft actuators have immense potential in microrobotics, haptics, and biomedical applications. However, the fabrication of miniaturized and micropatterned open-air soft actuators has remained challenging. In this study, we demonstrate the microfabrication of trilayer electrochemical actuators (ECAs) through aerosol jet printing (AJP), a rapid prototyping method with a 10 μm lateral resolution. We make fully printed 1000 × 5000 × 12 μm3ultrathin ECAs, each of which comprises a Nafion electrolyte layer sandwiched between two poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) electrode layers. The ECAs actuate due to the electric-field-driven migration of hydrated protons. Due to the thinness that gives rise to a low proton transport length and a low flexural rigidity, the printed ECAs can operate under low voltages (∼0.5 V) and have a relatively fast response (∼seconds). We print all the components of an actuator that consists of two individually controlled submillimeter segments and demonstrate its multimodal actuation. The convenience, versatility, rapidity, and low cost of our microfabrication strategy promise future developments in integrating arrays of intricately patterned individually controlled soft microactuators on compact stretchable electronic circuits.