DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yoon, Ji-Wook | ko |
dc.contributor.author | Kim, Hyo-Joong | ko |
dc.contributor.author | Kim, Il-Doo | ko |
dc.contributor.author | Lee, Jong-Heun | ko |
dc.date.accessioned | 2014-08-28T08:19:32Z | - |
dc.date.available | 2014-08-28T08:19:32Z | - |
dc.date.created | 2013-11-19 | - |
dc.date.created | 2013-11-19 | - |
dc.date.issued | 2013-11 | - |
dc.identifier.citation | NANOTECHNOLOGY, v.24, no.44 | - |
dc.identifier.issn | 0957-4484 | - |
dc.identifier.uri | http://hdl.handle.net/10203/188476 | - |
dc.description.abstract | Pure and 0.18-13.2 at.% Fe-doped NiO nanofibers were prepared by electrospinning and their gas sensing characteristics and microstructural evolution were investigated. The responses ((R-g R-a)/R-a, where R-g is the resistance in gas and R-a is the resistance in air) to 5 ppm C2H5OH, toluene, benzene, p-xylene, HCHO, CO, H-2, and NH3 at 350-500 ffi C were significantly enhanced by Fe doping of the NiO nanofibers, while the responses of pure NiO nanofibers to all the analyte gases were very low ((R-g-R-a)/R-a = 0.07-0.78). In particular, the response to 100 ppm C2H5OH was enhanced up to 217.86 times by doping of NiO nanofibers with 3.04 at.% Fe. The variation in the gas response was closely dependent upon changes in the base resistance of the sensors in air. The enhanced gas response of Fe-doped NiO nanofibers was explained in relation to electronic sensitization, that is, the increase in the chemoresistive variation due to the decrease in the hole concentration induced by Fe doping. | - |
dc.language | English | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.subject | ROOM-TEMPERATURE FERROMAGNETISM | - |
dc.subject | GAS SENSOR TECHNOLOGY | - |
dc.subject | DOPED NIO | - |
dc.subject | RAMAN-SPECTROSCOPY | - |
dc.subject | SENSING PROPERTIES | - |
dc.subject | COMBUSTION METHOD | - |
dc.subject | HOLLOW SPHERES | - |
dc.subject | CATALYSTS | - |
dc.subject | NANOPARTICLES | - |
dc.subject | FILMS | - |
dc.title | Electronic sensitization of the response to C2H5OH of p-type NiO nanofibers by Fe doping | - |
dc.type | Article | - |
dc.identifier.wosid | 000326015600008 | - |
dc.identifier.scopusid | 2-s2.0-84885758367 | - |
dc.type.rims | ART | - |
dc.citation.volume | 24 | - |
dc.citation.issue | 44 | - |
dc.citation.publicationname | NANOTECHNOLOGY | - |
dc.identifier.doi | 10.1088/0957-4484/24/44/444005 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Kim, Il-Doo | - |
dc.contributor.nonIdAuthor | Yoon, Ji-Wook | - |
dc.contributor.nonIdAuthor | Kim, Hyo-Joong | - |
dc.contributor.nonIdAuthor | Lee, Jong-Heun | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | ROOM-TEMPERATURE FERROMAGNETISM | - |
dc.subject.keywordPlus | GAS SENSOR TECHNOLOGY | - |
dc.subject.keywordPlus | DOPED NIO | - |
dc.subject.keywordPlus | RAMAN-SPECTROSCOPY | - |
dc.subject.keywordPlus | SENSING PROPERTIES | - |
dc.subject.keywordPlus | COMBUSTION METHOD | - |
dc.subject.keywordPlus | HOLLOW SPHERES | - |
dc.subject.keywordPlus | CATALYSTS | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | FILMS | - |
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