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dc.contributor.authorJang, Chi Woong-
dc.contributor.authorByun, Young Tae-
dc.contributor.authorJhon, Young Min-
dc.date.accessioned2024-01-20T15:06:09Z-
dc.date.available2024-01-20T15:06:09Z-
dc.date.created2021-09-04-
dc.date.issued2012-03-
dc.identifier.issn1533-4880-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/129498-
dc.description.abstractWe fabricated carbon nanotube (CNT) based chemical sensors for marine applications by photolithography process, where the electrodes were insulated by photoresist exposing only the carbon nanotube sensing section (2 mu m gap width) for detection of ammonium ions (NH4+) in 35 parts per thousand NaCl solution used as artificial seawater environment. The l-V curve of the CNT sensor was measured by sweeping the source-drain voltage from -3 to 3 V and the on/off ratio of the CNT sensor was measured to be 20 when the gate voltage was swept from -5 to 5 V and from these results the CNTs were found to appear as a p-type semiconductor. All of the cocktail solutions prepared for experiment were measured to have similar to pH 6 which implied 99.9% of NH4+ remained ionized. We successfully detected 10, 100, 1000 nM (0.18, 1.8, 18 ppb) concentration of NH4+ in 35 parts per thousand NaCl solutions by using the CNT sensor.-
dc.languageEnglish-
dc.publisherAMER SCIENTIFIC PUBLISHERS-
dc.titleDetection of 10 nM Ammonium Ions in 35 parts per thousand NaCl Solution by Carbon Nanotube Based Sensors-
dc.typeArticle-
dc.identifier.doi10.1166/jnn.2012.5843-
dc.description.journalClass1-
dc.identifier.bibliographicCitationJOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.12, no.3, pp.1765 - 1769-
dc.citation.titleJOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY-
dc.citation.volume12-
dc.citation.number3-
dc.citation.startPage1765-
dc.citation.endPage1769-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.wosid000305039700006-
dc.identifier.scopusid2-s2.0-84862998760-
dc.relation.journalWebOfScienceCategoryChemistry, Multidisciplinary-
dc.relation.journalWebOfScienceCategoryNanoscience & Nanotechnology-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.relation.journalWebOfScienceCategoryPhysics, Applied-
dc.relation.journalWebOfScienceCategoryPhysics, Condensed Matter-
dc.relation.journalResearchAreaChemistry-
dc.relation.journalResearchAreaScience & Technology - Other Topics-
dc.relation.journalResearchAreaMaterials Science-
dc.relation.journalResearchAreaPhysics-
dc.type.docTypeArticle-
dc.subject.keywordAuthorCarbon Nanotube-
dc.subject.keywordAuthorSensor-
dc.subject.keywordAuthorAmmonium Ion-
dc.subject.keywordAuthorNutrients-
dc.subject.keywordAuthorMarine-
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