Department of Precision Machinery and Precision Instrumentation , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230027 , China.
Shenzhen Institutes of Advanced Technology, Chinese Academy of Science , 1068 Xueyuan Avenue , Shenzhen 518055 , China.
ACS Appl Mater Interfaces. 2019 Dec 11;11(49):46157-46164. doi: 10.1021/acsami.9b16780. Epub 2019 Nov 27.
Origami, the ancient paper folding art, has been investigated from paper electronics to medical equipment and even spaceflight for its amazingly rich scientific foundation of building a complex three-dimensional (3D) structure, saving space, transmitting force, and establishing a load-bearing structure. Introducing origami into flexible pressure sensing will bring a new function to the planar electrical component. In this paper, a flexible iontronic sensing mechanism, handwriting process, and origami were combined into a pressure sensing platform, providing a handwriting iontronic pressure sensing origami with high performance, customized design, and 3D sensing ability. The handwriting process provides a simple, low-cost, efficient, no equipment limitation, and customized manufacturing method in preparing the pressure sensing origami using one commercial paper, while an ionic-electrode interface can be easily constructed by folding. Moreover, the device integrates the advantages of origami of forming a 3D structure, force transmission, and structural support with the pressure sensing function. Notably, the handwriting iontronic pressure sensing origami offers a high device sensitivity of 1.0 nF/(kPa cm), a detection limitation of 5.12 Pa, a rapid mechanical response time of 6 ms and a reset time of 4 ms, and an ultrahigh repeatability under periodic pressure. Benefiting from the unique properties of origami and the remarkable performances, the proposed handwriting iontronic pressure sensing origami can be highly advantageous for the emerging applications such as STEM education, customized electronic design, human-machine interfaces, etc., where high performance, rapid prototype, and 3D sensing are required.
折纸，这门古老的纸艺，以其丰富的科学基础而备受关注，这些基础包括构建复杂的三维（3D）结构、节省空间、传递力和建立承载结构等，其在纸电子学、医疗设备甚至太空探索领域都得到了广泛的研究。将折纸引入柔性压力感应将为平面电子元件带来新的功能。本文将柔性离子电子传感机制、手写过程和折纸结合到一个压力传感平台中，提出了一种具有高性能、定制设计和 3D 传感能力的手写离子电子压力传感折纸。手写过程提供了一种简单、低成本、高效、无设备限制和定制制造方法，可使用一张商业用纸制备压力传感折纸，而通过折纸可以轻松构建离子电极界面。此外，该器件集成了折纸形成 3D 结构、力传递和结构支撑的优点以及压力传感功能。值得注意的是，手写离子电子压力传感折纸具有 1.0 nF/（kPa cm）的高器件灵敏度、5.12 Pa 的检测极限、6 ms 的快速机械响应时间和 4 ms 的重置时间，以及在周期性压力下具有超高的重复性。得益于折纸的独特性质和卓越性能，所提出的手写离子电子压力传感折纸在新兴应用中具有很大的优势，例如 STEM 教育、定制电子设计、人机界面等，这些应用需要高性能、快速原型和 3D 传感。
