Transformable, Freestanding 3D Mesostructures Based on Transient Materials and Mechanical Interlocking
Transformable, Freestanding 3D Mesostructures Based on Transient Materials and Mechanical Interlocking
复制标题
基于瞬态材料和机械联锁的可变形、独立式 3D 细观结构
DOI：
10.1002/adfm.201903181
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发表时间：
2019-07-26
影响因子：
19
通讯作者：
Rogers, John A.
中科院分区：
文献类型：
--
作者：
Park, Yoonseok;Luan, Haiwen;Rogers, John A.
几乎涵盖微系统技术的每一个类别的应用领域，从电子到储能设备到化学/生物化学传感器，都可以从利用3D微/纳米结构布局的工程设计中受益。最近开发的用于形成这种系统的方法利用预拉伸弹性体基底中的应力释放作为从2D前体组装3D功能微器件的驱动力，包括那些依赖于最先进的功能材料和器件设计的微器件。在此，引入了扩展此类方法选项的概念，包括1）使用物理瞬时材料构建的零部件，允许将3D结构触发转换为其他形状; 2）由母型凸耳和公型钩组成的机械互锁元件，在组装过程中激活，以不可逆地“锁定”3D形状。无线电子设备展示了这些思想在功能系统中的实用性。
Areas of application that span almost every class of microsystems technology, from electronics to energy storage devices to chemical/biochemical sensors, can benefit from options in engineering designs that exploit 3D micro/nanostructural layouts. Recently developed methods for forming such systems exploit stress release in prestretched elastomer substrates as a driving force for the assembly of 3D functional microdevices from 2D precursors, including those that rely on the most advanced functional materials and device designs. Here, concepts that expand the options in this class of methods are introduced, to include 1) component parts built with physically transient materials to allow triggered transformation of 3D structures into other shapes and 2) mechanical interlocking elements composed of female‐type lugs and male‐type hooks that activate during the assembly process to irreversibly “lock‐in” the 3D shapes. Wireless electronic devices demonstrate the utility of these ideas in functional systems.