Stretchable, Transparent, Ionic Conductors
Stretchable, Transparent, Ionic Conductors
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DOI：
10.1126/science.1240228
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发表时间：
2013-08-30
期刊：
影响因子：
56.9
通讯作者：
Suo, Zhigang
中科院分区：
文献类型：
--
作者：
Keplinger, Christoph;Sun, Jeong-Yun;Suo, Zhigang
现有的可拉伸透明导体大多是电子导体。它们限制了互连、传感器和致动器作为可拉伸电子器件和软机器组件的性能。我们描述了一类由离子导体实现的设备，这些离子导体具有高度可拉伸性，对所有颜色的光完全透明，并且能够在超过10千赫兹的频率和超过10千伏的电压下工作。我们展示了一个透明的致动器，可以产生大的应变和一个透明的扬声器，在整个可听范围内产生声音。在没有电化学反应的情况下实现机电转换。离子导体具有比许多电子导体更高的电阻率;然而，当需要大的拉伸性和高透射率时，离子导体具有比所有现有电子导体更低的薄层电阻。
Existing stretchable, transparent conductors are mostly electronic conductors. They limit the performance of interconnects, sensors, and actuators as components of stretchable electronics and soft machines. We describe a class of devices enabled by ionic conductors that are highly stretchable, fully transparent to light of all colors, and capable of operation at frequencies beyond 10 kilohertz and voltages above 10 kilovolts. We demonstrate a transparent actuator that can generate large strains and a transparent loudspeaker that produces sound over the entire audible range. The electromechanical transduction is achieved without electrochemical reaction. The ionic conductors have higher resistivity than many electronic conductors; however, when large stretchability and high transmittance are required, the ionic conductors have lower sheet resistance than all existing electronic conductors.