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dc.contributor.authorQuddious, Abdul
dc.contributor.authorYang, Shuai
dc.contributor.authorKhan, Munawar M.
dc.contributor.authorTahir, Farooq A.
dc.contributor.authorShamim, Atif
dc.contributor.authorSalama, Khaled N.
dc.contributor.authorCheema, Hammad M.
dc.date.accessioned2016-12-29T13:20:20Z
dc.date.available2016-12-29T13:20:20Z
dc.date.issued2016-12-06
dc.identifier.citationQuddious A, Yang S, Khan M, Tahir F, Shamim A, et al. (2016) Disposable, Paper-Based, Inkjet-Printed Humidity and H2S Gas Sensor for Passive Sensing Applications. Sensors 16: 2073. Available: http://dx.doi.org/10.3390/s16122073.
dc.identifier.issn1424-8220
dc.identifier.doi10.3390/s16122073
dc.identifier.urihttp://hdl.handle.net/10754/622084
dc.description.abstractAn inkjet-printed, fully passive sensor capable of either humidity or gas sensing is presented herein. The sensor is composed of an interdigitated electrode, a customized printable gas sensitive ink and a specialized dipole antenna for wireless sensing. The interdigitated electrode printed on a paper substrate provides the base conductivity that varies during the sensing process. Aided by the porous nature of the substrate, a change in relative humidity from 18% to 88% decreases the electrode resistance from a few Mega-ohms to the kilo-ohm range. For gas sensing, an additional copper acetate-based customized ink is printed on top of the electrode, which, upon reaction with hydrogen sulphide gas (HS) changes, both the optical and the electrical properties of the electrode. A fast response time of 3 min is achieved at room temperature for a HS concentration of 10 ppm at a relative humidity (RH) of 45%. The passive wireless sensing is enabled through an antenna in which the inner loop takes care of conductivity changes in the 4-5 GHz band, whereas the outer-dipole arm is used for chipless identification in the 2-3 GHz band.
dc.description.sponsorshipThe authors would like to thank King Abdullah University of Science and Technology for fabrication and characterization facilities.
dc.publisherMDPI AG
dc.relation.urlhttp://www.mdpi.com/1424-8220/16/12/2073
dc.rightsThis is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subjectChipless radio frequency identification
dc.subjectGas sensor
dc.subjectHydrogen sulfide gas
dc.subjectInkjet printing
dc.subjectInternet-of-things
dc.subjectPaper substrate
dc.subjectWireless applications
dc.titleDisposable, Paper-Based, Inkjet-Printed Humidity and H2S Gas Sensor for Passive Sensing Applications
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.identifier.journalSensors
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionResearch Institute for Microwave and Millimeterwave Studies (RIMMS), National University of Sciences and Technology (NUST), Islamabad, 44000, Pakistan
kaust.personYang, Shuai
kaust.personShamim, Atif
kaust.personSalama, Khaled N.
refterms.dateFOA2018-06-14T04:38:34Z


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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
Except where otherwise noted, this item's license is described as This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).