物理学进展

物理学进展 ›› 2023, Vol. 43 ›› Issue (1): 1-9.doi: 10.13725/j.cnki.pip.2023.01.001

所属专题： 2022年, 第42卷

• •    下一篇

基于可拉伸有机晶体管的高性能生理信号传感器 

  

  1. 东华大学纤维材料改性国家重点实验室，材料科学与工程学院，上海 201620
  • 出版日期:2023-02-20 发布日期:2023-03-22
  • 基金资助:

    中央高校基本科研业务费专项资金项目 (2232020A-03、CUSF-DH-D-2021004)，上海市科委科 技创新行动计划 (21520710700、19JC1410600)

High-Performance Physiological Signal Sensors Based on Stretchable Organic Electrochemical Transistors

  1. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China 
  • Online:2023-02-20 Published:2023-03-22

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摘要：

近来，以共轭聚合物为沟道材料的有机电化学晶体管 (OECT) 因其易于制备、具有离子–电 子转换能力和生物界面相容性而成为研究热点。然而，已报道的用于 OECT 沟道材料的大多是 p 型共轭聚合物，而基于 n 型共轭聚合物开发的 OECT 则很少，而不平衡的发展阻碍了复杂互补 电路的实现。最近被报道的新兴 n 型共轭聚合物半导体 Poly (benzimidazobenzophenanthroline) (BBL) OECT 为解决上述问题提供了一个有效的方案。但 BBL 薄膜本身具有脆性无法拉伸，无 法满足柔性器件的使用需求，大大阻碍了其应用及发展。本工作中，我们提出了一种器件可拉伸 的 n 型 BBL OECT 器件的制备方法，并验证了其在汗液传感方面的可行性。

关键词: 有机电化学晶体管, 共轭聚合物, 可拉伸器件, 汗液传感, 聚 (苯并咪唑并菲咯啉)

Abstract:

Recently, organic electrochemical crystals (OECT) using conjugated polymers as channel materials have become a hot research topic due to their ease of preparation, ionelectron conversion capability and biointerface compatibility. However, most of the reported OECT channel materials for OECT are p-type conjugated polymers (hole transport), while few OECTs have been developed based on n-type conjugated polymers (electron transport), and the unbalanced development hinders the realization of complex complementary circuits. The recently reported n-type Poly (benzimidazobenzophenanthroline) (BBL) OECT of polyconjugated polymers provides an effective solution to the above problem. However, BBL films are inherently brittle and cannot be stretched to meet the use of flexible devices, which greatly hinders their application and development. In this work, we propose the preparation of a device stretchable n-type BBL OECT device and verify its feasibility for sweat sensing.

Key words: Organic electrochemical transistors, Conjugated polymers, Stretchable devices, Sweat sensing, Poly (benzimidazobenzophenanthroline) 

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