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Novel Bending Sensor Based on a Solution-Processed Cu(2)O Film with High Resolution Covering a Wide Curvature Range

[Image: see text] A Cu(2)O film is prepared on a flexible polyethylene terephthalate substrate for a bending sensor using the spin–spray method, a facile and low-environmental-load solution process. The Cu(2)O bending sensor shows high sensitivity and high resolution not only over a wide range of cu...

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Autores principales: Nitta, Ryosuke, Taguchi, Ryo, Kubota, Yuta, Kishi, Tetsuo, Shishido, Atsushi, Matsushita, Nobuhiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8655945/
https://www.ncbi.nlm.nih.gov/pubmed/34901613
http://dx.doi.org/10.1021/acsomega.1c04279
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author Nitta, Ryosuke
Taguchi, Ryo
Kubota, Yuta
Kishi, Tetsuo
Shishido, Atsushi
Matsushita, Nobuhiro
author_facet Nitta, Ryosuke
Taguchi, Ryo
Kubota, Yuta
Kishi, Tetsuo
Shishido, Atsushi
Matsushita, Nobuhiro
author_sort Nitta, Ryosuke
collection PubMed
description [Image: see text] A Cu(2)O film is prepared on a flexible polyethylene terephthalate substrate for a bending sensor using the spin–spray method, a facile and low-environmental-load solution process. The Cu(2)O bending sensor shows high sensitivity and high resolution not only over a wide range of curvatures (0 < κ < 0.21 mm(–1)) but also for very small curvature changes (Δκ = ∼ 0.03 mm(–1)). The bending response of the sensor exhibited a curvature change of high linearity with a good gauge factor (18.2) owing to the grain-boundary resistance and piezoresistive effects of the fabricated Cu(2)O film. In addition, the sensor possesses good repeatability, stability, and long-term (>30 days) and mechanical fatigue durability (1000 bending–release cycles). The sensor is capable of detailed monitoring of large- and small-scale human motions, such as finger bending, wrist bending, nodding, mouth opening/closing, and swallowing. In addition, excellent stability and repeatability of the monitoring performance is observed over a wide range of motion angles and speeds. All of these results demonstrate the potential of the flexible bending sensor based on the Cu(2)O film as a candidate for healthcare monitoring and wearable electronics.
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spelling pubmed-86559452021-12-10 Novel Bending Sensor Based on a Solution-Processed Cu(2)O Film with High Resolution Covering a Wide Curvature Range Nitta, Ryosuke Taguchi, Ryo Kubota, Yuta Kishi, Tetsuo Shishido, Atsushi Matsushita, Nobuhiro ACS Omega [Image: see text] A Cu(2)O film is prepared on a flexible polyethylene terephthalate substrate for a bending sensor using the spin–spray method, a facile and low-environmental-load solution process. The Cu(2)O bending sensor shows high sensitivity and high resolution not only over a wide range of curvatures (0 < κ < 0.21 mm(–1)) but also for very small curvature changes (Δκ = ∼ 0.03 mm(–1)). The bending response of the sensor exhibited a curvature change of high linearity with a good gauge factor (18.2) owing to the grain-boundary resistance and piezoresistive effects of the fabricated Cu(2)O film. In addition, the sensor possesses good repeatability, stability, and long-term (>30 days) and mechanical fatigue durability (1000 bending–release cycles). The sensor is capable of detailed monitoring of large- and small-scale human motions, such as finger bending, wrist bending, nodding, mouth opening/closing, and swallowing. In addition, excellent stability and repeatability of the monitoring performance is observed over a wide range of motion angles and speeds. All of these results demonstrate the potential of the flexible bending sensor based on the Cu(2)O film as a candidate for healthcare monitoring and wearable electronics. American Chemical Society 2021-11-08 /pmc/articles/PMC8655945/ /pubmed/34901613 http://dx.doi.org/10.1021/acsomega.1c04279 Text en © 2021 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Nitta, Ryosuke
Taguchi, Ryo
Kubota, Yuta
Kishi, Tetsuo
Shishido, Atsushi
Matsushita, Nobuhiro
Novel Bending Sensor Based on a Solution-Processed Cu(2)O Film with High Resolution Covering a Wide Curvature Range
title Novel Bending Sensor Based on a Solution-Processed Cu(2)O Film with High Resolution Covering a Wide Curvature Range
title_full Novel Bending Sensor Based on a Solution-Processed Cu(2)O Film with High Resolution Covering a Wide Curvature Range
title_fullStr Novel Bending Sensor Based on a Solution-Processed Cu(2)O Film with High Resolution Covering a Wide Curvature Range
title_full_unstemmed Novel Bending Sensor Based on a Solution-Processed Cu(2)O Film with High Resolution Covering a Wide Curvature Range
title_short Novel Bending Sensor Based on a Solution-Processed Cu(2)O Film with High Resolution Covering a Wide Curvature Range
title_sort novel bending sensor based on a solution-processed cu(2)o film with high resolution covering a wide curvature range
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8655945/
https://www.ncbi.nlm.nih.gov/pubmed/34901613
http://dx.doi.org/10.1021/acsomega.1c04279
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