Optoelectronic Synaptic Devices Based on the Heterostructure of Silicon Nanomembrane and P3HT

Optoelectronic synaptic devices based on silicon nanomembrane (Si NM) and Poly(3-hexylthiophene) (P3HT) are fabricated. Synaptic functionalities such as excitatory postsynaptic current (EPSC), paired-pulse facilitation (PPF), and transition from short-term memory (STM) to long-term memory (LTM) are mimicked by using light to stimulate the Si NM/P3HT optoelectronic synaptic devices. The “learning-forgetting-relearning” behavior of a human brain may be simulated by using these devices.