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Issue 40, 2015
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Frequency-dependent learning achieved using semiconducting polymer/electrolyte composite cells

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Abstract

Frequency-dependent learning has been achieved using semiconducting polymer/electrolyte composite cells. The cells composed of polymer/electrolyte double layers realized the conventional spike-rate-dependent plasticity (SRDP) learning model. These cells responded to depression upon low-frequency stimulation and to potentiation upon high-frequency stimulation and presented long-term memory. The transition threshold θm from depression to potentiation varied depending on the previous stimulations. A nanostructure resembling a bio-synapse in its transport passages was demonstrated and a random channel model was proposed to describe the ionic kinetics at the polymer/electrolyte interface during and after stimulations with various frequencies, accounting for the observed SRDP.

Graphical abstract: Frequency-dependent learning achieved using semiconducting polymer/electrolyte composite cells

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Supplementary files

Article information


Submitted
04 May 2015
Accepted
13 Sep 2015
First published
14 Sep 2015

Nanoscale, 2015,7, 16880-16889
Article type
Paper
Author version available

Frequency-dependent learning achieved using semiconducting polymer/electrolyte composite cells

W. S. Dong, F. Zeng, S. H. Lu, A. Liu, X. J. Li and F. Pan, Nanoscale, 2015, 7, 16880
DOI: 10.1039/C5NR02891D

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