Schmidt Georg C, Panicker Pramul M, Qiu Xunlin, Benjamin Aravindan J, Quintana Soler Ricardo A, Wils Issac, Hübler Arved C
Institute for Print and Media Technology, Technische Universität Chemnitz, Reichenhainer Str. 70, 09126, Chemnitz, Germany.
Adv Mater. 2021 Feb;33(8):e2006437. doi: 10.1002/adma.202006437. Epub 2021 Jan 18.
The trend to a world with ubiquitous electronics has the need for novel concepts for sensors and actuators that are lightweight, flexible, low-cost, and also sustainable. Piezoelectric transducers on the basis of functional polymers can meet these expectations. In this work, a novel concept for paper-embedded large-area piezoelectric devices realized solely by means of roll-to-roll (R2R) mass printing and post printing technologies including inline poling are introduced. The device set-up, as well as the process technology, offers the great opportunity for a cost-efficient and environmentally friendly mass production of thin and flexible organic large-area piezoelectric devices. As the functional layers are embedded into paper by the hot lamination of two poly(vinylidene fluoride-co-trifluoroethylene) P(VDF-TrFE) layers, the printed electronics is protected and invisible. The paper gives insights to the R2R printing of a 500 m long web including R2R post printing processes and electrical and acoustic inline characterization. Fully R2R processed devices show a high remnant polarization of up to 78 mC m and can be realized with high yield of >90%. Finally, a 360° surround-sound installation realized with a 387 cm long paper web consisting of 56 piezoelectric speakers including wiring is presented.
向无处不在的电子产品的世界发展的趋势需要适用于传感器和执行器的新颖概念，这些传感器和执行器要具备轻量、灵活、低成本且可持续的特点。基于功能聚合物的压电换能器能够满足这些期望。在这项工作中，介绍了一种仅通过卷对卷（R2R）大规模印刷和包括在线极化在内的后印刷技术实现的纸嵌入式大面积压电器件的新颖概念。该器件设置以及工艺技术为低成本、环境友好地大规模生产薄且灵活的有机大面积压电器件提供了绝佳机会。由于功能层通过两个聚（偏二氟乙烯 - 三氟乙烯）P（VDF - TrFE）层的热层压嵌入纸张中，印刷电子器件得到了保护且不可见。本文介绍了500米长卷筒纸的R2R印刷，包括R2R后印刷工艺以及电气和声学在线表征。完全通过R2R工艺制造的器件显示出高达78 mC m的高剩余极化，并且可以实现>90%的高成品率。最后，展示了一个由387厘米长的纸卷筒实现的360°环绕声装置，该纸卷筒由56个压电扬声器（包括布线）组成。
