Research progress in skin-like ultraflexible organic field-effect transistors

Abstract

<p indent="0mm">Field-effect transistor is one of the most important basic components in modern microelectronic industry. Organic field-effect transistors (OFETs) possess the outstanding advantages in flexibility, light weight, solution processability and good biocompatibility. They have presented great application potential in the field of skin-like electronics, such as software robots, implant devices and imperceptible wearable devices. Skin-like ultraflexible OFETs can be imperceptibly conformable to the three-dimensional static/dynamic surfaces such as skin and prosthesis, maintain the stable electrical performance under deformation, and give the wearer the minimized burden and maximized comfort. Decreasing the thickness and Young’s modulus will effectively reduce the resilience of the device due to deformation, which is the main strategy to obtain the skin-like ultraflexible devices with three-dimensional conformability. In this paper, two types of skin-like flexible OFETs, including ultra-thin transistors and stretchable transistors, are summarized. The research process of the skin-like ultraflexible OFETs is discussed.