Natural DNA biopolymer synaptic emulator for neuromorphic computing

In this study, we present a natural DNA biopolymer device that emulates synaptic plasticity and learning behaviors of biological synapses. The two-terminal device consists of a solution-processed DNA biopolymer layer sandwiched in between two electrodes without the need of external doping or surface...

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Bibliographic Details
Published in:Organic electronics 2023-03, Vol.114, p.106745, Article 106745
Main Authors: Lin, Yueh-Cheng, Hsiao, Tzu-Hsin, Li, Yi-Ting, Huang, Lin-Di, Fruk, Ljiljana, Hung, Yu-Chueh
Format: Article
Language:English
Subjects:
Artificial synapse
Biomaterial
DNA
Resistive switching
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Summary:In this study, we present a natural DNA biopolymer device that emulates synaptic plasticity and learning behaviors of biological synapses. The two-terminal device consists of a solution-processed DNA biopolymer layer sandwiched in between two electrodes without the need of external doping or surface modification. The conductance of the device can be modulated in response to the stimulated voltage pulses, mimicking the typical memory and learning behaviors of biological synapses. In addition, the device exhibits excellent endurance beyond 1000 potentiation/depression cycles with more than 105 operation pulses. Our results demonstrate excellent performance of neuromorphic devices based on natural DNA, opening new avenue for further developments of biomaterial-based neuromorphic device technology. [Display omitted] •Synaptic devices are demonstrated using solution-processed natural DNA biomaterial.•Synaptic plasticity is realized based on only one layer of natural DNA without the need for composite layers.•DNA synaptic devices exhibits excellent endurance at room temperature without encapsulation.•Switching mechanisms are presented to explain the synaptic plasticity of natural DNA-based devices.
ISSN:1566-1199
1878-5530
DOI:10.1016/j.orgel.2023.106745