Self-powered optoelectronic artificial synapses based on a lead-free perovskite film for artificial visual perception systems

Abstract

The visual perception system undertakes nearly 80% information perceiving tasks and its importance to human beings is self-evident. Optoelectronic synapse as the basic unit of artificial visual perception system not...

Optoelectronic synapses based on a triple cation perovskite and Al/MoO3 interface for neuromorphic information processing

“…However, there have been a number of excellent self-powered studies in which the bias voltage was 0, which makes it impossible to calculate the energy consumption of the device through the common equation. 27,35,36 Therefore, we calculated the minimum energy required for the device to work from the perspective of the input optical energy consumption, i.e. , by E = S × P × t , where S is the area of the device, P is the power density, and t is the spike duration of light.…”

Technology and Integration Roadmap for Optoelectronic Memristor

“…A major advance in this research is the use of a two-terminal structure of a self-powered memristor based on a monolithic all-perovskite system, which makes it possible for the bio-inspired striate brain to be extended to a crossbar array structure for low-power, high-density machine vision. [302] There are still many challenges to be overcome in the practical implementation of wearable OMs, such as sensor performance degradation during repeated deformation, crosstalk decoupling for simultaneous detection of multiple stimuli, and force, thermal, and electrical performance matching between devices within wearable platforms. The opportunities and development directions for relevant material preparation, device processing, and system integration will be revealed by overcoming these obstacles.…”

An Artificial LiSiOx Nociceptor with Neural Blockade and Self-Protection Abilities

“…Nociceptors are vital sensory receptors, which are free nerve endings distributed all over the body, − and they will be triggered when a biological organism is exposed to some intense stimuli , such as high temperature or strong UV radiation. − A pain signal will be generated and transmitted to our brain, and then our brain can fully process these pain signals and eventually send communication back to protect the body from further harm. However, in our natural organism, excessive neuronal excitability can be inhibited, thereby presenting a blocking effect on pain perception and protecting our brain from an excessive expression of pain signals .…”