Fig. 1. Schematic of organic synaptic transistor device structure based on Schottky barrier regulation, microscopic image of semiconductor, and electrical performance of the device

Fig. 2. Energy band mechanism diagrams of materials

Fig. 3. Schematic of biological structure and synaptic behavior simulated by synaptic device

Fig. 4. Synaptic device simulation of short-term to long-term plasticity transition under different conditions (pulse width and pulse numbers)

Fig. 5. Schematic of the operation of synaptic devices based on different contacts (Ohmic contact and Schottky barrier regulation) and electrical performance graph

Fig. 6. The band diagrams of metal electrodes and semiconductor layer before and after contact

Fig. 7. Comparative current response graphs of synaptic devices based on Ohmic contact and Schottky barrier regulation under different conditions (pulse width and pulse numbers)