Super-Flexible, Transparent Synaptic Transistors Based on Pullulan for Neuromorphic Electronics

With the development of artificial intelligence, super-flexibility and transparent neuromorphic electronics are gradually showing high application value in the fields of wearable see-through electronics and biomedical applica-tions. However, it is still a huge problem to realize synaptic devices with super-flexibility and transparent character-istics. Here, an organic synaptic transistor (OST) based on natural pullulan is fabricated with super-flexibility and high transmittance (similar to 83.3%), which enables it to achieve conformal and non-destructive attachment to arbitrary-shaped objects without affecting viewing. Various synaptic behaviors are successfully simulated even under extreme bending, showing outstanding mechanical stability. More-over, our OSTs can achieve ultrarapid degradation in ambi-ent water, which will reduce the generation of electronic waste. This work provides a guide for the development of super-flexible and transparent neuromorphic electrons, demonstrating a great step toward next-generation artificial intelligence.