Highly Stretchable Sound‐in‐Display Electronics Based on Strain‐Insensitive Metallic Nanonetworks,Advanced Science

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Highly Stretchable Sound‐in‐Display Electronics Based on Strain‐Insensitive Metallic Nanonetworks
Advanced Science ( IF 14.3 ) Pub Date : 2020-11-23 , DOI: 10.1002/advs.202001647
Seungse Cho ₁ , Dong-Hee Kang ₁ , Hyejin Lee ₁ , Minsoo P Kim ₁ , Saewon Kang ₁ , Ravi Shanker ₁ , Hyunhyub Ko ₁

Affiliation

The growing importance of human–machine interfaces and the rapid expansion of the internet of things (IoT) have inspired the integration of displays with sound generation systems to afford stretchable sound‐in‐display devices and thus establish human‐to‐machine connections via auditory system visualization. Herein, the synchronized generation of sound and color is demonstrated for a stretchable sound‐in‐display device with electrodes of strain‐insensitive silver nanowires (AgNWs) and emissive layers of field‐induced inorganic electroluminescent (EL) phosphors. In this device, EL phosphors embedded in a dielectric elastomer actuator (DEA) emit light under alternating‐current bias, while audible sound waves are simultaneously generated via DEA actuation along with input sound signals. The electroluminescence and sound‐generation performances of the fabricated device are highly robust and reliable, being insensitive to stretch‐release cycling because of the presence of the AgNW stretchable electrodes. The presented principle of integrating light emission and acoustic systems in a single stretchable device can be further expanded to realize sound‐in‐display electronics for IoT and human–machine interface applications.

中文翻译：

基于应变不敏感金属纳米网络的高度可拉伸声音显示电子器件

人机界面的重要性日益增加以及物联网 (IoT) 的快速扩展激发了显示器与声音生成系统的集成，以提供可拉伸的声音显示设备，从而通过听觉建立人机连接系统可视化。在此，演示了可拉伸声音显示设备的声音和颜色的同步生成，该设备具有应变不敏感银纳米线（AgNW）电极和场致无机电致发光（EL）磷光体发射层。在该设备中，嵌入介电弹性体致动器 (DEA) 中的 EL 荧光粉在交流电偏置下发光，同时通过 DEA 致动与输入声音信号同时产生可听声波。所制造的器件的电致发光和发声性能非常稳健和可靠，由于 AgNW 可拉伸电极的存在，对拉伸释放循环不敏感。所提出的将发光和声学系统集成在单个可拉伸设备中的原理可以进一步扩展，以实现用于物联网和人机界面应用的显示声音电子设备。

更新日期：2021-01-07

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