Formation and dissolution of conductive channels in an Ag2S-islands network

Keita Ojima, Tsuyoshi Hasegawa, Yasuhisa Naitoh, Hisashi Shima, Hiroyuki Akinaga

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


A network that shows dynamical change in response to each input pattern works as a reservoir. In this study, we propose to use a network of Ag2S islands for reservoir computing. Input of a small number of electrons to an Ag2S island from a neighbored island causes Ag nanowire growth, which eventually connects the two islands. Shrinkage of an Ag nanowire also occurs depending on the distribution of a local electric potential. Thus, growth and shrinkage of Ag nanowires among Ag2S islands shows dynamical change in conductive channels responding to input bias, which is demonstrated by an Ag2S-island network surrounded by input/output electrodes. The Ag2S islands that are electrically connected to a surrounding electrode are identified using a conductive-atomic force microscope, confirming the operating mechanism.

Original languageEnglish
Article numberSN1011
JournalJapanese journal of applied physics
Issue numberSN
Publication statusPublished - 2020 Aug 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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