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Synapse‐Like Organic Thin Film Memristors
Author(s) -
Zhong YaNan,
Wang Tian,
Gao Xu,
Xu JianLong,
Wang SuiDong
Publication year - 2018
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201800854
Subject(s) - materials science , memristor , neuromorphic engineering , synapse , electret , synaptic plasticity , long term potentiation , thin film , optoelectronics , nanotechnology , non volatile memory , neuroscience , computer science , electrical engineering , artificial neural network , composite material , biology , engineering , biochemistry , chemistry , receptor , machine learning
Exploring new type of synapse–like electronic devices with fusion of computing and memory is a promising strategy to fundamentally approach to intelligent machines. Herein, organic thin film memristors (OTFMs) are achieved, functioning as electrically programmable and erasable analog memory with continuous and nonvolatile device states. The memristive characteristics of OTFMs stem from the asymmetric electrode configuration and the cumulative charge trapping/detrapping in a polymer electret layer, which enables the state–dependent current modulation analogous to the synaptic weight change in biological synapses. OTFMs are demonstrated to successfully emulate the essential synaptic functions, including the reversible potentiation and depression, and the short‐term plasticity such as the paired‐pulse facilitation and the long‐term plasticity such as the spike–timing dependent plasticity.