Integrated Ionic-Additive Assisted Wet-Spinning of Highly Conductive and Stretchable PEDOT:PSS Fiber for Fibrous Organic Electrochemical Transistors
Integrated Ionic-Additive Assisted Wet-Spinning of Highly Conductive and Stretchable PEDOT:PSS Fiber for Fibrous Organic Electrochemical Transistors
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DOI：
10.1002/aelm.202100231
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发表时间：
2021-06-06
影响因子：
6.2
通讯作者：
Wang, Hongzhi
中科院分区：
文献类型：
--
作者：
Chen, Yanping;Meng, Jie;Wang, Hongzhi
聚（3，4-乙撑二氧噻吩）：聚（苯乙烯磺酸盐）（PEDOT：PSS）作为一种最常用的导电聚合物，已被研究多年。近年来，特别是随着智能服装和可穿戴设备的发展，PEDOT：PSS纤维正成为研究人员关注的焦点。然而，不理想的导电性和拉伸性阻碍了其应用。在这项工作中，一个集成的离子添加剂辅助湿法纺丝策略（IIAWS），以解决现有的瓶颈。所制备的纤维表现出3573 S cm（-1）的极高电导率和约30%的拉伸性。系统地研究和阐明了整个制备过程中的导电增强机理。此外，一个全固态的纤维有机电化学晶体管（OECT）的基础上的PEDOT：PSS纤维制造的器件具有2.44 mS和令人印象深刻的弯曲性能。
As one of the most prevalently used conductive polymers, poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) has been studied for many years. Recently, especially with the development of smart clothing and wearable devices, PEDOT:PSS fiber is becoming the focus of researchers. However, the undesirable conductivity and stretchability hinder its applications. In this work, an integrated ionic-additive assisted wet-spinning strategy (IIAWS) is demonstrated to address the existing bottlenecks. The fabricated fiber exhibited an extremely high conductivity of 3573 S cm(-1) and stretchability of about 30%. The mechanisms for conductivity enhancement in the entire preparation process are systematically studied and clarified. Furthermore, an all-solid-state fibrous organic electrochemical transistor (OECT) device based on the PEDOT:PSS fiber is fabricated with a transconductance of 2.44 mS and impressive bending property.