An Artificial Nerve Capable of UV‐Perception, NIR–Vis Switchable Plasticity Modulation, and Motion State Monitoring

Abstract

The first flexible organic-heterojunction neuromorphic transistor (OHNT) that senses broadband light, including near-ultraviolet (NUV), visible (vis), and near-infrared (NIR), and processes multiplexed-neurotransmission signals is demonstrated. For UV perception, electrical energy consumption down to 536 aJ per synaptic event is demonstrated, at least one order of magnitude lower than current UV-sensitive synaptic devices. For NIR-and vis-perception, switchable plasticity by alternating light sources is yielded for recognition and memory. The device emulates multiplexed neurochemical transition of different neurotransmitters such as dopamine and noradrenaline to form short-term and long-term responses. These facilitate the first realization of human-integrated motion state monitoring and processing using a synaptic hardware, which is then used for real-time heart monitoring of human movement. Motion state analysis with the 96% accuracy is then achieved by artificial neural network. This work provides important support to future biomedical electronics and neural prostheses.

Structures, Properties, and Device Applications for [1]Benzothieno[3,2‐b]Benzothiophene Derivatives

“…Moreover, the neuromorphic devices showed the ability to real-time heart monitoring of human movement, which enriched the function of artificial nervous systems. [251] Dai et al fabricated lightstimulated synaptic transistors via a kind of interface modification. [252] They added a polyacrylonitrile (PAN) thin film between SiO 2 and C8-BTBT (Figure 13c).…”

Bio-Inspired Electronic Eyes and Synaptic Photodetectors for Mobile Artificial Vision

“…Furthermore, the addition of unconventional functions to the electronic eyes is desired. For example, the detection of invisible (e.g., infrared [90]- [92] and ultraviolet [93], [94]) and/or circularly polarized light [95]- [97] can provide image-based information that cannot be detected by human eyes. These properties would be useful for particular applications such as night vision [98] and gas leakage detection [99].…”

Artificial Vision Adaption Mimicked by an Optoelectrical In2O3 Transistor Array

“…Artificial visual perception systems have gained considerable attention in recent years because they can recognize, learn, and remember neuromorphic functions in the next generation of robots and human sensory electronics. − In the human visual system, the external visual information and environment are recognized through the combination of visual perception process and parallel memory and learning process. − However, the most advanced photodetectors can only detect light signals without any neuromorphic function. Therefore, the realization of artificial visual has high requirements for the integration of artificial retina and artificial optic nerve with neuromorphic function.…”