Printable Low Power Organic Transistor for Highly Customizable IoT Devices

An organic/silicon hybrid system is proposed for customizable Internet of Things (IoT) devices, composed of a silicon integrated circuit (IC) chip and organic field effect transistor (OFET) transducers. The silicon IC chip performs high performance and complex signal processing, and the OFET transducer provides flexible or conformable large area coverage and more friendly interfaces to integrate different sensing materials. A low trap-state density OFET (LTDOFET) technology is developed for such a hybrid system, owning features of low-cost solution printing processes, low operation voltage and excellent operational stability. This technology has been implemented with various materials, and processes, indicating its generality. Several sensor applications built based on this device technology are also reviewed, proving the LTDOFET technology would be promising for highly customizable IoT applications.