Abstract Both the viologen and polyaniline (PANI) have shown high electrochemical redox activity that can be used to fabricate optoelectronic, electronic and energy storage devices as well as sensors. However, it still remains great challenge for integrating these two fascinating materials together via covalent linkage to avoid phase separation in physical mixtures. In this work, a novel viologen-bridged polyaniline film (hereafter called as VBP) onto the indium-tin-oxide (ITO) glass was prepared by one-step electropolymerization approach, and then the in-situ synthesized golden nanoparticles (AuNPs) were sandwiched between the VBP films to produce the heterofilms (VBP|Au|VBP) as active materials. The VBP|Au|VBP-based electronic memory device and all-solid-state supercapacitor, which exhibited bistable nonvolatile rewritable memory performance with high ON/OFF current ratio of 10 5 and high volumetric capacitance up to 6.22 Fcm −3 , respectively, were fabricated through simple layer-by-layer method. This work not only offers a new and easy strategy for synthesizing viologen-bridged PANI materials through covalent bonding, but also paves the way for the development of high-efficient sandwich-type resistive random access memory (RRAM) devices and the all-solid-state supercapacitors based on rational designed heterofilms.

中文翻译：

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用于全固态超级电容器和存储器件的紫罗碱桥接聚苯胺基多功能异质膜

摘要 紫精和聚苯胺 (PANI) 都显示出高电化学氧化还原活性，可用于制造光电、电子和能量存储设备以及传感器。然而，通过共价键将这两种迷人的材料整合在一起以避免物理混合物中的相分离仍然是一个巨大的挑战。在这项工作中，通过一步电聚合方法在氧化铟锡（ITO）玻璃上制备了一种新型紫罗碱桥连聚苯胺膜（以下简称 VBP），然后原位合成金纳米粒子（AuNPs）夹在 VBP 膜之间以产生异质膜 (VBP|Au|VBP) 作为活性材料。基于 VBP|Au|VBP 的电子存储器件和全固态超级电容器，通过简单的逐层方法制造了分别具有10 5 的高开/关电流比和高达6.22 Fcm -3 的高体积电容的双稳态非易失性可重写存储器性能。这项工作不仅为通过共价键合合成紫罗碱桥接的 PANI 材料提供了一种新的、简单的策略，而且还为开发高效三明治型电阻随机存取存储器 (RRAM) 器件和全固态-基于合理设计的异质膜的状态超级电容器。