Reconfigurable Flexible Electronics Driven by Origami Magnetic Membranes,Advanced Materials Technologies

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Reconfigurable Flexible Electronics Driven by Origami Magnetic Membranes
Advanced Materials Technologies ( IF 6.4 ) Pub Date : 2021-03-05 , DOI: 10.1002/admt.202001124
Zhijie Qi ₁ , Mingxing Zhou ₁ , Ya Li ₁ , Zhiqiang Xia ₁ , Wenxing Huo ₁ , Xian Huang _{1,

2}

Affiliation

Deformation of flexible electronics can lead to reconfigurable electrical properties, controllable deployment, and tunable working modes, but approaches to actuate flexible electronics are quite limited. A promising method involves using magnetic fields to yield simple displacement of magnetic membranes. However, realization of complex multiaxial bending and rotations of magnetic membranes remains challenging. Here, flexible origami magnetic membranes with programmable magnetic polarities are used to generate complex spatial deformation through coupling with an external magnetic field and interaction among intrinsic magnetism. The membranes can work as standalone flexible actuators and serve as substrates to trigger spontaneous deformation of the carrying flexible devices such as antennas, energy harvesters, and light‐emitting diode arrays. The membranes can travel on a dry surface or in a liquid environment. They also exhibit the capability to reversibly capture and release objects traveling at 326 mm s^–1. Flexible devices on the membranes can offer tunable gains and frequencies as well as novel folding and releasing mechanisms determined by the complex magnetic polarities of the underneath membranes. The origami magnetic membranes can be combined to yield more complicate patterns and magnetic polarities, leading to innovative applications in surgical robots, tunable antennas, and various reconfigurable flexible electronics.

中文翻译：

折纸磁性膜片驱动的可重构柔性电子设备

柔性电子设备的变形会导致可重新配置的电气特性，可控的部署以及可调整的工作模式，但致动柔性电子设备的方法非常有限。一种有前途的方法涉及使用磁场产生磁性膜的简单位移。然而，实现磁性膜的复杂的多轴弯曲和旋转仍然具有挑战性。此处，具有可编程磁极性的柔性折纸磁性膜用于通过与外部磁场耦合以及本征磁性之间的相互作用来产生复杂的空间变形。这些膜可以充当独立的柔性致动器，并用作触发诸如天线，能量收集器和发光二极管阵列之类的柔性设备的自发变形的基底。膜可以在干燥的表面或液体环境中传播。它们还具有可逆地捕获和释放以326 mm s传播的物体的能力。^–1。膜片上的柔性装置可以提供可调的增益和频率，以及由下面的膜片的复杂磁极性决定的新颖的折叠和释放机制。可将折纸磁性膜结合起来以产生更复杂的图案和磁极性，从而在外科手术机器人，可调天线和各种可重配置的柔性电子产品中得到创新应用。

更新日期：2021-04-05

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