Self-Powered Intelligent Tactile-Sensing System Based on Organic Electrochemical Transistors

The existing intelligent sensing systems face problems in terms of physical separation between sensors and synaptic devices, as well as the necessity for an external power source to drive these devices. This results in significant losses in system power consumption and speed. Here, we demonstrate a self-powered intelligent tactile sensing system, aiming to address these challenges. The integration at the device level is achieved by constructing a sensory integration structure based on an organic electrochemical transistor (OECT), thereby mitigating system redundancy and power dissipation. Meanwhile, the self-powered nature of the system based on an organic solar cell (OSC) eliminates the need for an external power supply, making it suitable for portable real-time tactile perception applications. The system has a low operating voltage (0.9 V) and low power consumption (50 μw). It also demonstrates plasticity and the potential to learn behavior, making it suitable for applications in intelligent humanoid robots and other future scenarios.