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Phys."],"published-print":{"date-parts":[[2021,4,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Metal-oxide (MO) semiconductor gas sensors based on chemical resistivity necessarily involve making electrical contacts to the sensing materials. These contacts are imperfect and introduce errors into the measurements. In this paper, we demonstrate the feasibility of using contactless broadband dielectric spectroscopy (BDS)-based metrology in gas monitoring that avoids distortions in the reported resistivity values due to probe use, and parasitic errors (i.e. tool\u2013measurand interactions). Specifically, we show how radio frequency propagation characteristics can be applied to study discrete processes on MO sensing material, such as zinc oxide (i.e. ZnO) surfaces, when exposed to a redox-active gas. Specifically, we have used BDS to investigate the initial oxidization of ZnO gas sensing material in air at temperatures below 200 \u00b0C, and to show that the technique affords new mechanistic insights that are inaccessible with the traditional resistance-based measurements.<\/jats:p>","DOI":"10.1088\/1361-6463\/abd3ce","type":"journal-article","created":{"date-parts":[[2020,12,15]],"date-time":"2020-12-15T17:30:21Z","timestamp":1608053421000},"page":"135104","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Broadband dielectric spectroscopic detection of volatile organic compounds with ZnO nanorod gas sensors\n                    <sup>*<\/sup>"],"prefix":"10.1088","volume":"54","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3328-2692","authenticated-orcid":false,"given":"Papa K","family":"Amoah","sequence":"first","affiliation":[{"name":"Old Dominion University"},{"name":"Applied Research Center at Thomas Jefferson National Accelerator Laboratories"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pengtao","family":"Lin","sequence":"additional","affiliation":[{"name":"Old Dominion University"},{"name":"Applied Research Center at Thomas Jefferson National Accelerator Laboratories"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Helmut","family":"Baumgart","sequence":"additional","affiliation":[{"name":"Old Dominion University"},{"name":"Applied Research Center at Thomas Jefferson National Accelerator Laboratories"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rhonda R","family":"Franklin","sequence":"additional","affiliation":[{"name":"University of Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4880-1689","authenticated-orcid":false,"given":"Yaw S","family":"Obeng","sequence":"additional","affiliation":[{"name":"Physical Measurement Laboratory, National Institute of Standards and Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2021,1,22]]},"reference":[{"key":"dabd3cebib1","doi-asserted-by":"publisher","first-page":"15119","DOI":"10.1016\/j.ceramint.2016.06.145","type":"journal-article","article-title":"Detection of hazardous volatile organic compounds (VOCs) by metal oxide nanostructures-based gas sensors: a review","volume":"42","author":"Mirzaei","year":"2016","journal-title":"Ceram. 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All rights, including for text and data mining, AI training, and similar technologies, are reserved.","name":"copyright_information","label":"Copyright Information"},{"value":"2020-09-08","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2020-12-15","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2021-01-22","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}