File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Droplet-Dispensed Graphene Oxide as Capacitive Sensing Elements for Flexible Pressure-Pulse Sensing Array

TitleDroplet-Dispensed Graphene Oxide as Capacitive Sensing Elements for Flexible Pressure-Pulse Sensing Array
Authors
KeywordsDroplet dispensing
flexible sensors
graphene oxide
human pulse sensing
tactile sensor
Issue Date21-Nov-2022
PublisherInstitute of Electrical and Electronics Engineers
Citation
IEEE Open Journal of Nanotechnology, 2023, v. 4, p. 47-54 How to Cite?
Abstract

We report a novel flexible capacitive pressure-pulse sensor array developed by integrating droplet-dispensed graphene oxide (GO) sensing elements and flexible electronics. The utilization of droplet-dispensing technology enables the fabrication multiple capacitive sensing elements rapidly while producing sensitive pressure sensors with excellent repeatability. The dispensed droplet volume (GO aqueous dispersion) ranged from around 33.5 to 65.4 pL with diameter ranging from 40 to 50 μm. The size (i.e., footprint and dielectric material thickness) of a sensing element can be controlled by the total GO dispersed per droplet. The fabrication process and preliminary characterization of these GO capacitive sensors are discussed in this paper. Thus far, we have shown that these sensors have a sensitivity of ∼10 −3 kPa −1 , with the relative permittivity of the dispensed GO being ∼6 (measured at a frequency of 600 kHz). We have also demonstrated that the printed sensing elements can be used for human wrist pulse sensing. Hence the technology described in this paper could potentially be used in wearable electronics for healthcare applications.


Persistent Identifierhttp://hdl.handle.net/10722/339711
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorKong, KW-
dc.contributor.authorWang, K-
dc.contributor.authorLeung, AYL-
dc.contributor.authorZhang, H-
dc.contributor.authorSuo, J-
dc.contributor.authorChen, M-
dc.contributor.authorZhang, G-
dc.contributor.authorFei, F-
dc.contributor.authorShen, J-
dc.contributor.authorLi, WJ-
dc.date.accessioned2024-03-11T10:38:46Z-
dc.date.available2024-03-11T10:38:46Z-
dc.date.issued2022-11-21-
dc.identifier.citationIEEE Open Journal of Nanotechnology, 2023, v. 4, p. 47-54-
dc.identifier.urihttp://hdl.handle.net/10722/339711-
dc.description.abstract<p>We report a novel flexible capacitive pressure-pulse sensor array developed by integrating droplet-dispensed graphene oxide (GO) sensing elements and flexible electronics. The utilization of droplet-dispensing technology enables the fabrication multiple capacitive sensing elements rapidly while producing sensitive pressure sensors with excellent repeatability. The dispensed droplet volume (GO aqueous dispersion) ranged from around 33.5 to 65.4 pL with diameter ranging from 40 to 50 μm. The size (i.e., footprint and dielectric material thickness) of a sensing element can be controlled by the total GO dispersed per droplet. The fabrication process and preliminary characterization of these GO capacitive sensors are discussed in this paper. Thus far, we have shown that these sensors have a sensitivity of ∼10 <sup>−3</sup> kPa <sup>−1</sup> , with the relative permittivity of the dispensed GO being ∼6 (measured at a frequency of 600 kHz). We have also demonstrated that the printed sensing elements can be used for human wrist pulse sensing. Hence the technology described in this paper could potentially be used in wearable electronics for healthcare applications.<br></p>-
dc.languageeng-
dc.publisherInstitute of Electrical and Electronics Engineers-
dc.relation.ispartofIEEE Open Journal of Nanotechnology-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectDroplet dispensing-
dc.subjectflexible sensors-
dc.subjectgraphene oxide-
dc.subjecthuman pulse sensing-
dc.subjecttactile sensor-
dc.titleDroplet-Dispensed Graphene Oxide as Capacitive Sensing Elements for Flexible Pressure-Pulse Sensing Array-
dc.typeArticle-
dc.identifier.doi10.1109/OJNANO.2022.3223712-
dc.identifier.scopuseid_2-s2.0-85144067155-
dc.identifier.volume4-
dc.identifier.spage47-
dc.identifier.epage54-
dc.identifier.eissn2644-1292-
dc.identifier.isiWOS:000932424400004-
dc.identifier.issnl2644-1292-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats