Institute of Biological and Chemical Systems-Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany.
ACS Appl Mater Interfaces. 2021 May 12;13(18):21661-21668. doi: 10.1021/acsami.0c22519. Epub 2021 Apr 27.
Conductive polymers have been intensively investigated as materials for electrodes in flexible electronics due to their favorable biocompatibility and reliable electrochemical stability. Nevertheless, patterning of conductive polymers for the fabrication of devices and in various electronics applications confronts multifarious limitations and challenges. Here, we present a simple but efficient strategy to obtain conductive polymer microelectrodes via utilization of surface-tension-confined liquid patterns. This method shows universality for various oxidizers and conductive polymers, high resolution, stability, and favorable compatibility with different surfaces and materials. The developed method has been demonstrated for creating conductive polymer microelectrodes with a customized reaction process, defined geometry, and flexible substrates. The obtained microelectrodes were assembled into flexible capacitive sensors. Thus, the method realizes a facile approach to conductive polymer microelectrodes for flexible electronics, biomedical applications, human activity monitors, and electronic skin.
导电聚合物由于其良好的生物相容性和可靠的电化学稳定性，已被广泛研究作为柔性电子中电极的材料。然而，为了制造器件和各种电子应用，对导电聚合物进行图案化面临着多种多样的限制和挑战。在这里，我们提出了一种简单但有效的策略，通过利用表面张力限制的液体图案来获得导电聚合物微电极。该方法对于各种氧化剂和导电聚合物具有通用性，具有高分辨率、稳定性以及与不同表面和材料的良好兼容性。所开发的方法已被证明可用于通过定制的反应过程、定义的几何形状和柔性衬底来制造导电聚合物微电极。所获得的微电极被组装成柔性电容式传感器。因此，该方法实现了一种用于柔性电子、生物医学应用、人体活动监测器和电子皮肤的导电聚合物微电极的简易方法。
