有机电化学晶体管分子材料与功能器件研究进展

Advancements in Semiconductor Materials and Functional Devices of Organic Electrochemical Transistors

有机电化学晶体管通过离子-电子耦合调控共轭分子的电子结构和导电能力,被认为是下一代柔性智能电子的理想载体.本文结合电化学掺杂工作原理,总结了有机电化学晶体管分子材料在离子-电子耦合性能以及在可拉伸性、机械顺应性和生物黏性等力学特征的研究进展,并介绍了器件在互补逻辑电路、生物传感和仿生神经突触等方面的功能应用.此外,从有机共轭分子设计、界面修饰、离子动力学调控和器件结构开发等方面入手,分析了提升器件性能和推动器件多功能化的研究策略,展示了有机电化学晶体管在智能电子方面的重要研究价值.最后,详细探讨了有机电化学晶体管在面向传感-适应-反馈-处理的一体化智能感知器件和低成本商业化制备等方面的关键挑战与机遇.

Organic electrochemical transistors play a crucial role in modulating the electronic structure and conductivity of conjugated films through ion-electron coupling,making them highly promising for the advancement of flexible smart electronics.This article provides a comprehensive overview of the organic electrochemical transistors by integrating electrochemical doping principle.It discusses the recent advancements in ion-electron coupling performance and mechanical characteristics such as stretchability,mechanical conformability,and bioviscosity.In addition,it summarizes the multifunctional applications of the organic electrochemical transistors,including their role in complementary logic circuits,biosensing,and bionic neural synapses.Furthermore,special emphasis is placed on research strategies,aimed at enhancing device performance and enabling multifunctionality through approaches like organic conjugated molecule design,interface modification,ion dynamics control,and device structure optimization,underscoring the versatility of OECTs in smart electronics.Finally,the key challenges and opportunities of organic electrochemical transistors are discussed in detail concerning integrated intelligent sensing devices for sensing-adaptation-feedback-processing and low-cost commercial preparation.