| Literature DB >> 33707420 |
Jinran Yu1,2, Guoyun Gao1,2, Jinrong Huang1,2, Xixi Yang1,2, Jing Han1,2, Huai Zhang1,2, Youhui Chen1,2, Chunlin Zhao1,2, Qijun Sun3,4,5, Zhong Lin Wang6,7.
Abstract
Low power electronics endowed with artificial intelligence and biological afferent characters are beneficial to neuromorphic sensory network. Highly distributed synaptic sensory neurons are more readily driven by portable, distributed, and ubiquitous power sources. Here, we report a contact-electrification-activated artificial afferent at femtojoule energy. Upon the contact-electrification effect, the induced triboelectric signals activate the ion-gel-gated MoS2 postsynaptic transistor, endowing the artificial afferent with the adaptive capacity to carry out spatiotemporal recognition/sensation on external stimuli (e.g., displacements, pressures and touch patterns). The decay time of the synaptic device is in the range of sensory memory stage. The energy dissipation of the artificial afferents is significantly reduced to 11.9 fJ per spike. Furthermore, the artificial afferents are demonstrated to be capable of recognizing the spatiotemporal information of touch patterns. This work is of great significance for the construction of next-generation neuromorphic sensory network, self-powered biomimetic electronics and intelligent interactive equipment.Entities:
Year: 2021 PMID： 33707420 DOI： 10.1038/s41467-021-21890-1
Source DB: PubMed Journal: Nat Commun ISSN： 2041-1723 Impact factor: 14.919