Yin Ming-Jie, Zhao Qiang, Wu Jushuai, Seefeldt Karoline, Yuan Jiayin
Photonics Research Center, Department of Electrical Engineering , The Hong Kong Polytechnic University , Hong Kong , SAR , China.
Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering , Huazhong University of Science and Technology , Wuhan 430074 , China.
ACS Nano. 2018 Dec 26;12(12):12551-12557. doi: 10.1021/acsnano.8b07069. Epub 2018 Dec 10.
Porous poly(ionic liquid)s (PILs) recently have been serving as a multifunctional, interdisciplinary materials platform in quite a few research areas, including separation, catalysis, actuator, sensor, and energy storage, just to name a few. In this context, the capability of photopatterning PIL microstructures in a porous state on a substrate is still missing but is a crucial step for their real industrial usage. Here, we developed a method for in situ rapid patterning of porous PIL microstructures via a maskless photolithography approach coupled with a simple electrostatic complexation treatment. This breakthrough enables design of miniaturized sensors. As exemplified in this work, upon loading Pt nanoparticles into porous PIL microstructures, the hybrid sensor showed outstanding performance, bearing both a high sensitivity and a wide detection range.
多孔聚离子液体（PILs）近来在包括分离、催化、致动器、传感器和能量存储等诸多研究领域中作为一个多功能、跨学科的材料平台发挥着作用，仅举几例。在此背景下，在基底上以多孔状态对PIL微结构进行光图案化的能力仍然欠缺，但这是其实际工业应用的关键一步。在此，我们开发了一种通过无掩模光刻方法结合简单的静电络合处理对多孔PIL微结构进行原位快速图案化的方法。这一突破使得微型传感器的设计成为可能。正如本工作中所举例说明的，将铂纳米颗粒负载到多孔PIL微结构中后，这种混合传感器表现出卓越的性能，兼具高灵敏度和宽检测范围。
