All solution-processed micro-structured flexible electrodes for low-cost light-emitting pressure sensors fabrication

Abstract Recent studies have demonstrated the advantage of developing pressure-sensitive devices with light-emitting properties for direct visualization of pressure distribution, potential application to next generation touch panels and human-machine interfaces. To ensure that this technology is ava...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Rie Shimotsu, Takahiro Takumi, Varun Vohra
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
Materias:
R
Q
Acceso en línea:https://doaj.org/article/b0436d5bae46494da62f8dd7fc95a45c
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:doaj.org-article:b0436d5bae46494da62f8dd7fc95a45c
record_format dspace
spelling oai:doaj.org-article:b0436d5bae46494da62f8dd7fc95a45c2021-12-02T11:52:59ZAll solution-processed micro-structured flexible electrodes for low-cost light-emitting pressure sensors fabrication10.1038/s41598-017-07284-82045-2322https://doaj.org/article/b0436d5bae46494da62f8dd7fc95a45c2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07284-8https://doaj.org/toc/2045-2322Abstract Recent studies have demonstrated the advantage of developing pressure-sensitive devices with light-emitting properties for direct visualization of pressure distribution, potential application to next generation touch panels and human-machine interfaces. To ensure that this technology is available to everyone, its production cost should be kept as low as possible. Here, simple device concepts, namely, pressure sensitive flexible hybrid electrodes and OLED architecture, are used to produce low-cost resistive or light-emitting pressure sensors. Additionally, integrating solution-processed self-assembled micro-structures into the flexible hybrid electrodes composed of an elastomer and conductive materials results in enhanced device performances either in terms of pressure or spatial distribution sensitivity. For instance, based on the pressure applied, the measured values for the resistances of pressure sensors range from a few MΩ down to 500 Ω. On the other hand, unlike their evaporated equivalents, the combination of solution-processed flexible electrodes with an inverted OLED architectures display bright green emission when a pressure over 200 kPa is applied. At a bias of 3 V, their luminance can be tuned by applying a higher pressure of 500 kPa. Consequently, features such as fingernails and fingertips can be clearly distinguished from one another in these long-lasting low-cost devices.Rie ShimotsuTakahiro TakumiVarun VohraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Rie Shimotsu
Takahiro Takumi
Varun Vohra
All solution-processed micro-structured flexible electrodes for low-cost light-emitting pressure sensors fabrication
description Abstract Recent studies have demonstrated the advantage of developing pressure-sensitive devices with light-emitting properties for direct visualization of pressure distribution, potential application to next generation touch panels and human-machine interfaces. To ensure that this technology is available to everyone, its production cost should be kept as low as possible. Here, simple device concepts, namely, pressure sensitive flexible hybrid electrodes and OLED architecture, are used to produce low-cost resistive or light-emitting pressure sensors. Additionally, integrating solution-processed self-assembled micro-structures into the flexible hybrid electrodes composed of an elastomer and conductive materials results in enhanced device performances either in terms of pressure or spatial distribution sensitivity. For instance, based on the pressure applied, the measured values for the resistances of pressure sensors range from a few MΩ down to 500 Ω. On the other hand, unlike their evaporated equivalents, the combination of solution-processed flexible electrodes with an inverted OLED architectures display bright green emission when a pressure over 200 kPa is applied. At a bias of 3 V, their luminance can be tuned by applying a higher pressure of 500 kPa. Consequently, features such as fingernails and fingertips can be clearly distinguished from one another in these long-lasting low-cost devices.
format article
author Rie Shimotsu
Takahiro Takumi
Varun Vohra
author_facet Rie Shimotsu
Takahiro Takumi
Varun Vohra
author_sort Rie Shimotsu
title All solution-processed micro-structured flexible electrodes for low-cost light-emitting pressure sensors fabrication
title_short All solution-processed micro-structured flexible electrodes for low-cost light-emitting pressure sensors fabrication
title_full All solution-processed micro-structured flexible electrodes for low-cost light-emitting pressure sensors fabrication
title_fullStr All solution-processed micro-structured flexible electrodes for low-cost light-emitting pressure sensors fabrication
title_full_unstemmed All solution-processed micro-structured flexible electrodes for low-cost light-emitting pressure sensors fabrication
title_sort all solution-processed micro-structured flexible electrodes for low-cost light-emitting pressure sensors fabrication
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/b0436d5bae46494da62f8dd7fc95a45c
work_keys_str_mv AT rieshimotsu allsolutionprocessedmicrostructuredflexibleelectrodesforlowcostlightemittingpressuresensorsfabrication
AT takahirotakumi allsolutionprocessedmicrostructuredflexibleelectrodesforlowcostlightemittingpressuresensorsfabrication
AT varunvohra allsolutionprocessedmicrostructuredflexibleelectrodesforlowcostlightemittingpressuresensorsfabrication
_version_ 1718394947412951040