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Ion buffering and interface charge enable high performance electronics with organic electrochemical transistors

Organic electrochemical transistors rely on ionic-electronic volumetric interaction to provide a seamless interface between biology and electronics with outstanding signal amplification. Despite their huge potential, further progress is limited owing to the lack of understanding of the device fundam...

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Autores principales: Romele, Paolo, Ghittorelli, Matteo, Kovács-Vajna, Zsolt Miklós, Torricelli, Fabrizio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6620344/
https://www.ncbi.nlm.nih.gov/pubmed/31292452
http://dx.doi.org/10.1038/s41467-019-11073-4
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author Romele, Paolo
Ghittorelli, Matteo
Kovács-Vajna, Zsolt Miklós
Torricelli, Fabrizio
author_facet Romele, Paolo
Ghittorelli, Matteo
Kovács-Vajna, Zsolt Miklós
Torricelli, Fabrizio
author_sort Romele, Paolo
collection PubMed
description Organic electrochemical transistors rely on ionic-electronic volumetric interaction to provide a seamless interface between biology and electronics with outstanding signal amplification. Despite their huge potential, further progress is limited owing to the lack of understanding of the device fundamentals. Here, we investigate organic electrochemical transistors in a wide range of experimental conditions by combining electrical analyses and device modeling. We show that the measurements can be quantitatively explained by nanoscale ionic-electronic charge interaction, giving rise to ion buffering and interface charge compensation. The investigation systematically explains and unifies a wide range of experiments, providing the rationale for the development of high-performance electronics. Unipolar inverters — universal building blocks for electronics — with gain larger than 100 are demonstrated. This is the highest gain ever reported, enabling the design of devices and circuits with enhanced performance and opening opportunities for the next-generation integrated bioelectronics and neuromorphic computing.
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spelling pubmed-66203442019-07-15 Ion buffering and interface charge enable high performance electronics with organic electrochemical transistors Romele, Paolo Ghittorelli, Matteo Kovács-Vajna, Zsolt Miklós Torricelli, Fabrizio Nat Commun Article Organic electrochemical transistors rely on ionic-electronic volumetric interaction to provide a seamless interface between biology and electronics with outstanding signal amplification. Despite their huge potential, further progress is limited owing to the lack of understanding of the device fundamentals. Here, we investigate organic electrochemical transistors in a wide range of experimental conditions by combining electrical analyses and device modeling. We show that the measurements can be quantitatively explained by nanoscale ionic-electronic charge interaction, giving rise to ion buffering and interface charge compensation. The investigation systematically explains and unifies a wide range of experiments, providing the rationale for the development of high-performance electronics. Unipolar inverters — universal building blocks for electronics — with gain larger than 100 are demonstrated. This is the highest gain ever reported, enabling the design of devices and circuits with enhanced performance and opening opportunities for the next-generation integrated bioelectronics and neuromorphic computing. Nature Publishing Group UK 2019-07-10 /pmc/articles/PMC6620344/ /pubmed/31292452 http://dx.doi.org/10.1038/s41467-019-11073-4 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Romele, Paolo
Ghittorelli, Matteo
Kovács-Vajna, Zsolt Miklós
Torricelli, Fabrizio
Ion buffering and interface charge enable high performance electronics with organic electrochemical transistors
title Ion buffering and interface charge enable high performance electronics with organic electrochemical transistors
title_full Ion buffering and interface charge enable high performance electronics with organic electrochemical transistors
title_fullStr Ion buffering and interface charge enable high performance electronics with organic electrochemical transistors
title_full_unstemmed Ion buffering and interface charge enable high performance electronics with organic electrochemical transistors
title_short Ion buffering and interface charge enable high performance electronics with organic electrochemical transistors
title_sort ion buffering and interface charge enable high performance electronics with organic electrochemical transistors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6620344/
https://www.ncbi.nlm.nih.gov/pubmed/31292452
http://dx.doi.org/10.1038/s41467-019-11073-4
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