DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Il-Doo | ko |
dc.contributor.author | Rothschild, A | ko |
dc.contributor.author | Lee, BH | ko |
dc.contributor.author | Kim, DY | ko |
dc.contributor.author | Jo, SM | ko |
dc.contributor.author | Tuller, HL | ko |
dc.date.accessioned | 2013-03-08T07:39:39Z | - |
dc.date.available | 2013-03-08T07:39:39Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2006-09 | - |
dc.identifier.citation | NANO LETTERS, v.6, pp.2009 - 2013 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | http://hdl.handle.net/10203/92496 | - |
dc.description.abstract | Nanostructured semiconducting metal oxides and particularly single nanowire devices offer exceptional gas sensitivity but at the expense of statistical variations and excessive noise levels. In this study TiO2/poly( vinyl acetate) composite nanofiber mats were directly electrospun onto interdigitated Pt electrode arrays, hot pressed at 120 degrees C, and calcined at 450 degrees C. This resulted in a novel multiple nanowire network composed of sheaths of 200-500 nm diameter cores filled with readily gas accessible similar to 10 nm thick single-crystal anatase fibrils. TiO2 nanofiber sensors tested for NO2, in dry air, exhibited exceptional sensitivity showing with, for example, a 833% increase in sensor resistance when exposed to 500 ppb NO2 at 300 degrees C, consistent with a detection limit estimated to be well below 1 ppb. Unusual response patterns were observed at high NO2 concentrations (> 12.5 ppm), consistent with n to p inversion of the surface-trap limited conduction facilitated by the high surface-to-volume ratio of this material. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | OXIDE GAS SENSORS | - |
dc.subject | SENSING CHARACTERISTICS | - |
dc.subject | SEMICONDUCTING OXIDES | - |
dc.subject | ELECTRICAL DETECTION | - |
dc.subject | METAL | - |
dc.subject | NO2 | - |
dc.subject | TEMPERATURE | - |
dc.subject | NANOSENSORS | - |
dc.subject | SENSITIVITY | - |
dc.subject | TRANSITION | - |
dc.title | Ultrasensitive chemiresistors based on electrospun TiO2 nanofibers | - |
dc.type | Article | - |
dc.identifier.wosid | 000240465100031 | - |
dc.identifier.scopusid | 2-s2.0-33749677926 | - |
dc.type.rims | ART | - |
dc.citation.volume | 6 | - |
dc.citation.beginningpage | 2009 | - |
dc.citation.endingpage | 2013 | - |
dc.citation.publicationname | NANO LETTERS | - |
dc.identifier.doi | 10.1021/nl061197h | - |
dc.contributor.localauthor | Kim, Il-Doo | - |
dc.contributor.nonIdAuthor | Rothschild, A | - |
dc.contributor.nonIdAuthor | Lee, BH | - |
dc.contributor.nonIdAuthor | Kim, DY | - |
dc.contributor.nonIdAuthor | Jo, SM | - |
dc.contributor.nonIdAuthor | Tuller, HL | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | OXIDE GAS SENSORS | - |
dc.subject.keywordPlus | SENSING CHARACTERISTICS | - |
dc.subject.keywordPlus | SEMICONDUCTING OXIDES | - |
dc.subject.keywordPlus | ELECTRICAL DETECTION | - |
dc.subject.keywordPlus | METAL | - |
dc.subject.keywordPlus | NO2 | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | NANOSENSORS | - |
dc.subject.keywordPlus | SENSITIVITY | - |
dc.subject.keywordPlus | TRANSITION | - |
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