A Flexible and Biomimetic Olfactory Synapse with Gasotransmitter‐Mediated Plasticity
Source abstract
Abstract
Abstract Neuromorphic electronics has demonstrated great promise in mimicking the sensory and memory functions of biological systems. However, synaptic devices with desirable sensitivity, selectivity, and operational voltage imitating the olfactory system have rarely been reported. Here, a flexible and biomimetic olfactory synapse based on an organic electrochemical transistor (OECT) coupled with a breath‐figure derived porous solid polymer electrolyte (SPE) is proposed. The device demonstrates excellent sensitivity with a ppb‐level response limit and desirable selectivity toward hydrogen sulfide (H2S) over other gases, and successfully achieves wireless real‐time detection of excessive concentration of H2S from rotten eggs. H2S‐mediated synaptic plasticity is accomplished with the device and typical synaptic behaviors are realized, including short‐term memory (STM), long‐term memory (LTM), transition from STM to LTM, etc., enabling the imitation of potential cumulative damages upon H2S exposure. The proposed device paves new ways toward next‐generation olfactory systems capable of sensing and memorizing functionalities mimicking neurobiological systems, offering critical materials strategies to accomplish intelligent artificial sensory systems.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Conducting polymers and applications · Perovskite Materials and Applications · Advanced Memory and Neural Computing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering The Key Laboratory of Advanced Materials of Ministry of Education State Key Laboratory of New Ceramics and Fine Processing Center for Flexible Electronics Technology Tsinghua University Beijing 100084 China
College of Engineering Peking University Beijing 100084 China
Department of Electronic Engineering Tsinghua University Beijing 100084 China
Department of Engineering Science and Mechanics The Pennsylvania State University University Park PA 16802 USA
School of Materials Science and Engineering Tsinghua University Beijing 100084 China
Beijing Institute of Collaborative Innovation Beijing Siweizhigan Co., Ltd Beijing 100084 China
Beijing Engineering Research Center of Mixed Reality and Advanced Display School of Optics and Photonics Beijing Institute of Technology Beijing 100084 China
Department of Electronic Engineering Beijing National Research Center for Information Science and Technology Institute for Precision Medicine Center for Flexible Electronics Technology, and IDG/McGovern Institute for Brain Research Tsinghua University Beijing 100084 China
State Key Laboratory for Mesoscopic Physics Frontiers Science Center for Nano‐optoelectronics School of Physics Peking University Beijing 100084 China
Funding
Natural Science Foundation of Beijing Municipality · National Natural Science Foundation of China
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