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High-Resolution Femtosecond Laser-Induced Carbon and Ag Hybrid Structure for Bend Sensing

[Image: see text] Miniaturized resistance-based portable bending sensors have been widely used for human health monitoring in recent years. Their sensitivities are defined by their resistance variations (ΔR/R), which strongly rely on the conductivity and minimum line width of the sensing unit. Laser...

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Autores principales: Hong, Quan, Zhu, Weihua, Wang, Sumei, Jiang, Lan, He, Jiahua, Zhan, Jie, Li, Xin, Zhao, Xiaoming, Zhao, Bingquan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9685746/
https://www.ncbi.nlm.nih.gov/pubmed/36440162
http://dx.doi.org/10.1021/acsomega.2c05060
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author Hong, Quan
Zhu, Weihua
Wang, Sumei
Jiang, Lan
He, Jiahua
Zhan, Jie
Li, Xin
Zhao, Xiaoming
Zhao, Bingquan
author_facet Hong, Quan
Zhu, Weihua
Wang, Sumei
Jiang, Lan
He, Jiahua
Zhan, Jie
Li, Xin
Zhao, Xiaoming
Zhao, Bingquan
author_sort Hong, Quan
collection PubMed
description [Image: see text] Miniaturized resistance-based portable bending sensors have been widely used for human health monitoring in recent years. Their sensitivities are defined by their resistance variations (ΔR/R), which strongly rely on the conductivity and minimum line width of the sensing unit. Laser-induced carbonization is a fast and simple method to fabricate porous-sensing structures. However, the fabrication resolution of conductive and deformation-sensitive structures is limited by the thermal effect of commonly used laser sources. With the assistance of femtosecond laser temporal shaping, plasma ejection confinement, and silver nitrate doping, the sheet resistance of the sensing structure was improved from 15 to 0.0004 Ω/□. A thin line with a lateral resolution of 6.5 μm is fabricated as the sensing unit. The fFabricated structures are characterized by electron microscopy, Raman spectroscopy, energy-dispersive spectroscopy, X-ray scattering, and time-resolved images. The strain sensor demonstrates a ΔR/R of 25.8% with a rising edge of 109 ms in the cyclic bending test. The sensor is further applied for detecting human pulse and finger bending.
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spelling pubmed-96857462022-11-25 High-Resolution Femtosecond Laser-Induced Carbon and Ag Hybrid Structure for Bend Sensing Hong, Quan Zhu, Weihua Wang, Sumei Jiang, Lan He, Jiahua Zhan, Jie Li, Xin Zhao, Xiaoming Zhao, Bingquan ACS Omega [Image: see text] Miniaturized resistance-based portable bending sensors have been widely used for human health monitoring in recent years. Their sensitivities are defined by their resistance variations (ΔR/R), which strongly rely on the conductivity and minimum line width of the sensing unit. Laser-induced carbonization is a fast and simple method to fabricate porous-sensing structures. However, the fabrication resolution of conductive and deformation-sensitive structures is limited by the thermal effect of commonly used laser sources. With the assistance of femtosecond laser temporal shaping, plasma ejection confinement, and silver nitrate doping, the sheet resistance of the sensing structure was improved from 15 to 0.0004 Ω/□. A thin line with a lateral resolution of 6.5 μm is fabricated as the sensing unit. The fFabricated structures are characterized by electron microscopy, Raman spectroscopy, energy-dispersive spectroscopy, X-ray scattering, and time-resolved images. The strain sensor demonstrates a ΔR/R of 25.8% with a rising edge of 109 ms in the cyclic bending test. The sensor is further applied for detecting human pulse and finger bending. American Chemical Society 2022-11-11 /pmc/articles/PMC9685746/ /pubmed/36440162 http://dx.doi.org/10.1021/acsomega.2c05060 Text en © 2022 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 Hong, Quan
Zhu, Weihua
Wang, Sumei
Jiang, Lan
He, Jiahua
Zhan, Jie
Li, Xin
Zhao, Xiaoming
Zhao, Bingquan
High-Resolution Femtosecond Laser-Induced Carbon and Ag Hybrid Structure for Bend Sensing
title High-Resolution Femtosecond Laser-Induced Carbon and Ag Hybrid Structure for Bend Sensing
title_full High-Resolution Femtosecond Laser-Induced Carbon and Ag Hybrid Structure for Bend Sensing
title_fullStr High-Resolution Femtosecond Laser-Induced Carbon and Ag Hybrid Structure for Bend Sensing
title_full_unstemmed High-Resolution Femtosecond Laser-Induced Carbon and Ag Hybrid Structure for Bend Sensing
title_short High-Resolution Femtosecond Laser-Induced Carbon and Ag Hybrid Structure for Bend Sensing
title_sort high-resolution femtosecond laser-induced carbon and ag hybrid structure for bend sensing
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9685746/
https://www.ncbi.nlm.nih.gov/pubmed/36440162
http://dx.doi.org/10.1021/acsomega.2c05060
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