Fast-speed, high-sensitivity polyimide humidity sensors with superhydrophilic carbon nanotube network electrodes
DC Field | Value | Language |
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dc.contributor.author | Lee, Myung Jin | - |
dc.contributor.author | Hong, Hyun Pyo | - |
dc.contributor.author | Kwon, Kwang Ho | - |
dc.contributor.author | Park, Chan Won | - |
dc.contributor.author | Min, Nam Ki | - |
dc.date.accessioned | 2021-09-05T23:28:07Z | - |
dc.date.available | 2021-09-05T23:28:07Z | - |
dc.date.created | 2021-06-14 | - |
dc.date.issued | 2013-08 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/102649 | - |
dc.description.abstract | We present a highly fast capacitive humidity sensor based on superhydrophilic carbon nanotube network electrodes prepared by using spray deposition of multiwalled carbon nanotubes (MWCNT). Spray-deposited MWCNT films form a well-entangled and interconnected porous network with nano-scale open pores. These properties are highly desirable for fast-speed capacitive humidity sensors. In addition, the effect of plasma functionalization (pf) of the MWCNT surface on sensor response was evaluated. The pf-MWCNT electrode sensor exhibited a much faster response time (about 1.5 s) and a higher sensitivity (0.647 pF/%RH) to humidity, compared to untreated MWCNT and porous Cr electrodes. The large improvement in performance was explained by the percolated pore network, which is more accessible to water molecules; the superhydrophilic surface of the MWCNTs favorable to more adsorption of water vapor; and capillary condensation, which can amplify the capacitance response to relative humidity. (C) 2013 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | ORGANIC-CHEMICALS | - |
dc.subject | GAS | - |
dc.subject | ADSORPTION | - |
dc.subject | FUNCTIONALIZATION | - |
dc.subject | FABRICATION | - |
dc.subject | SURFACES | - |
dc.subject | POLAR | - |
dc.subject | NO2 | - |
dc.subject | CO | - |
dc.title | Fast-speed, high-sensitivity polyimide humidity sensors with superhydrophilic carbon nanotube network electrodes | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kwon, Kwang Ho | - |
dc.contributor.affiliatedAuthor | Min, Nam Ki | - |
dc.identifier.doi | 10.1016/j.snb.2013.04.117 | - |
dc.identifier.scopusid | 2-s2.0-84878570000 | - |
dc.identifier.wosid | 000321509600014 | - |
dc.identifier.bibliographicCitation | SENSORS AND ACTUATORS B-CHEMICAL, v.185, pp.97 - 104 | - |
dc.relation.isPartOf | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.citation.title | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.citation.volume | 185 | - |
dc.citation.startPage | 97 | - |
dc.citation.endPage | 104 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalResearchArea | Instruments & Instrumentation | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Instruments & Instrumentation | - |
dc.subject.keywordPlus | ORGANIC-CHEMICALS | - |
dc.subject.keywordPlus | GAS | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | FUNCTIONALIZATION | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.subject.keywordPlus | SURFACES | - |
dc.subject.keywordPlus | POLAR | - |
dc.subject.keywordPlus | NO2 | - |
dc.subject.keywordPlus | CO | - |
dc.subject.keywordAuthor | MWCNT film | - |
dc.subject.keywordAuthor | Humidity sensor | - |
dc.subject.keywordAuthor | Surface modification | - |
dc.subject.keywordAuthor | Polyimide | - |
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