材料科学
生物电子学
纳米技术
基质(水族馆)
制作
晶体管
仿生学
可伸缩电子设备
数码产品
生物传感器
电压
电气工程
工程类
病理
地质学
医学
海洋学
替代医学
作者
Xiaohong Li,R. Bi,Xueling Ou,Songjia Han,Shengkai Yu,Guoliang Chen,Zhuang Xie,Chuan Liu,Wan Yue,Yan Wang,Weisheng Hu,Shuang Guo
标识
DOI:10.1021/acsami.3c07169
摘要
Organic electrochemical transistors (OECTs) for skin-like bioelectronics require mechanical stretchability, softness, and cost-effective large-scale manufacturing. However, developing intrinsically stretchable OECTs using a simple and fast-response technique is challenging due to limitations in functional materials, substrate wettability, and integrated processing of multiple materials. In this regard, we propose a fabrication method devised by combining the preparation of a microstructured hydrophilic substrate, multi-material printing of functional inks with varying viscosities, and optimization of the device channel geometries. The resulting intrinsically stretchable OECT array with synaptic properties was successfully manufactured. These devices demonstrated high transconductance (22.5 mS), excellent mechanical softness (Young's modulus ∼ 2.2 MPa), and stretchability (∼30%). Notably, the device also exhibited artificial synapse functionality, mimicking the biological synapse with features such as paired-pulse depression, short-term plasticity, and long-term plasticity. This study showcases a promising strategy for fabricating intrinsically stretchable OECTs and provides valuable insights for the development of brain-computer interfaces.
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