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dc.contributor.author김태환-
dc.date.accessioned2017-11-17T00:38:36Z-
dc.date.available2017-11-17T00:38:36Z-
dc.date.issued2016-01-
dc.identifier.citationSENSORS AND ACTUATORS B-CHEMICAL, v. 222, Page. 763-768en_US
dc.identifier.issn0925-4005-
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0925400515303099?via%3Dihub-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/31476-
dc.description.abstractWe report a simple solution-process route to realize ammonia (NH3) gas sensor based on graphene quantum dots (GQDs). Transmission electron microscopy analysis confirmed that the 8-10nm GQDs were formed from multi-walled carbon nanotubes by using ultrasonication treatment. The as-fabricated gas sensor showed promising selectivity response when expose to NH3 ambient at room temperature. It is indicated that by adjusting the pH value of the aqueous GQDs in acidic and neutral, two types of gas sensors with contrary current responses could be obtained, which might be resulted from quantum confinement, edge effects and presence of functional groups on GQDs. (C) 2015 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipThis work was supported by the Natural Science Foundation of Fujian Province (2013J01233), National Natural Science Foundation of China (61377027), National Research Foundation of Korea (2013-016467), State Key Laboratory of Electronic Thin Films and Integrated Devices (Grant KFJJ201309) and Foundation of Fuzhou University (2011-XY-24).en_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE SAen_US
dc.subjectGraphene quantum dotsen_US
dc.subjectMWCNTsen_US
dc.subjectAmmonia gas sensoren_US
dc.titleRoom temperature pH-dependent ammonia gas sensors using graphene quantum dotsen_US
dc.typeArticleen_US
dc.relation.volume222-
dc.identifier.doi10.1016/j.snb.2015.09.002-
dc.relation.page763-768-
dc.relation.journalSENSORS AND ACTUATORS B-CHEMICAL-
dc.contributor.googleauthorChen, Wei-
dc.contributor.googleauthorLi, Fushan-
dc.contributor.googleauthorOoi, Poh Choon-
dc.contributor.googleauthorYe, Yun-
dc.contributor.googleauthorKim, Tae Whan-
dc.contributor.googleauthorGuo, Tailiang-
dc.relation.code2016001030-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF ELECTRONIC ENGINEERING-
dc.identifier.pidtwk-
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COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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