Evolving conductive polymer neural networks on wetware

Akai-Kasaya, Megumi; Hagiwara, Naruki; Hikita, Wataru; Okada, Masaru; Sugito, Yasumasa; Kuwahara, Yuji; Asai, Tetsuya

Evolving conductive polymer neural networks on wetware

Akai-Kasaya, Megumi; Hagiwara, Naruki; Hikita, Wataru et al.

Japanese Journal of Applied Physics, 2020, 59(6), 060601

Permalink : https://hdl.handle.net/2115/81643

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論文情報

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アクセス権	open access
URI	https://hdl.handle.net/2115/81643
タイトル	Evolving conductive polymer neural networks on wetware
著者	Akai-Kasaya, Megumi ; Hagiwara, Naruki ; Hikita, Wataru ; Okada, Masaru ; Sugito, Yasumasa ; Kuwahara, Yuji ; Asai, Tetsuya
e-Rad_Researcher 50437373 著者名 Akai-Kasaya, Megumi
著者名 Hagiwara, Naruki
著者名 Hikita, Wataru
著者名 Okada, Masaru
著者名 Sugito, Yasumasa
e-Rad_Researcher 00283721 著者名 Kuwahara, Yuji
e-Rad_Researcher 00312380 著者名 Asai, Tetsuya
言語	英語
キーワード	neural network
	polymer wire
	machine learning
	PEDOT
	PSS
発行日	2020-05-15
出版者	IOP Publishing
収録物名	Japanese Journal of Applied Physics
巻(号)	59(6)
ページ	060601
抄録	Neural networks in the brain are structured in three-dimensional (3D) space, and the networks evolve through development and learning, whereas two-dimensional (2D) crossbars have essentially been optimized for a fully connected neural network, which results in a significant increase in unused memristors. Here, we present a prototype of molecular neural networks on wetware consisting of a space-free synaptic medium immersed in monomer solution. In the medium, conductive polymer wires are grown between multiple electrodes through learning only when necessary, i.e. no polymer wire is pre-placed, unlike present 2D crossbar devices. Through experiments, we found the necessary growth conditions for synaptic polymer wires. We first demonstrated the learning of simple Boolean functions and then data-encoding tasks by using our system comprising the synaptic media and their external controllers. These results are valuable for expanding the concept of space-free synapse development, i.e. extending our 2D synaptic media to 3D is possible in principle.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
権利情報	©2020 The Japan Society of Applied Physics
権利情報	This is the Accepted Manuscript version of an article accepted for publication in Japanese Journal of Applied Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.35848/1347-4065/ab8e06
PISSN	0021-4922
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.35848/1347-4065/ab8e06