有机场效应晶体管传感器的制备与性能研究

Organic field-effect transistors (OFET) based sensor represents one of the most forward-looking research subject in multifunctional OFETs. Centered on the basic scientific problems of OFET based sensors, this project will focus on the development of new research strategies by interface modification of organic layer and dielectric layer, as well as the optimization of the device structures. The combination of these important strategies with the utilization of the prominent organic semiconductors will enable the development of a series of novel chemical and physical sensors. For example, the investigation of the living substance detection using OFET would be performed to enable novel chemical-/bio-sensors. Construction of flexible magnetic sensors, which possess promising applications in touchless control and medical treatment systems, will serve as another important part in this project. Meanwhile, we’ll carry out systematic studies on the sensing mechanism of OFET sensors to allow for optimization of their sensing performance. More importantly, the integration of OFET sensors towards flexible sensing matrix is expected to demonstrate their applications in artificial intelligence and wearable electronic elements.

随着有机场效应晶体管（OFET）的迅猛发展，多功能OFET逐渐成为决定其走向实用的关键性课题，OFET传感器由于极其重要的应用价值而成为功能化研究中最为重要的前瞻性方向之一。针对OFET传感领域面临的基本科学问题，在已开发的高性能半导体材料基础上，以器件表界面结构化改性和新型器件结构的优化为主要切入点，制备综合性能优异的OFET化学和物理传感器。利用OFET实现对多种化学与生物物质检测；设计开发新型OFET磁场传感器；系统研究传感作用机制，以全面优化传感性能。另外，本项目还将探究功能器件集成策略，构建具有位置分辨功能的柔性矩阵化传感器阵列，探索其在人工智能以及可穿戴电子器件领域的应用。

本项目紧密围绕共轭分子材料晶体管传感器件面临的基本科学问题，以表界面结构改性和新型器件结构设计为主要切入点，制备综合性能优异的化学和物理传感器，在传感器件构建的基本策略、关键技术与功能应用方面取得多项重要进展。本项目执行期间根据项目任务书要求推进相关研究，完成了项目的预期目标。项目根据相关领域的发展调整了部分研究内容，主要包括加强生物电子功能器件的构筑，使得本项目向更为纵深的方向发展。基于上述成果发表SCI论文9篇，其中包括Acc. Chem. Res. 1篇， Adv. Mater. 3篇，完成项目的预订目标。本项目的实施为有机场效应晶体管的进一步发展与应用奠定了良好的基础。