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dc.contributor.author김영범-
dc.date.accessioned2017-03-17T01:57:16Z-
dc.date.available2017-03-17T01:57:16Z-
dc.date.issued2015-07-
dc.identifier.citationSCRIPTA MATERIALIA, v. 104, Page. 45-48en_US
dc.identifier.issn1359-6462-
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S135964621500130X-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/26173-
dc.description.abstractNanocrystalline YDC thin films with grain-sizes ranging from 38 to 93-nm were prepared using pulsed laser deposition followed by thermal annealing. Ionic conductivity decreased up to four orders of magnitude as the grain size increased. Using energy-dispersive X-ray spectroscopy, we showed that the counter-intuitive reduction in conductivity with grain-size is likely due to dopant and impurity segregation near grain-boundaries. Spectroscopic evidence suggests that the blocking effect due to defect segregation is more dominant on ionic conductivity than the grain-sizes. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipY.B.K. gratefully acknowledges financial support from the National Research Foundation (NRF) of the Korean Ministry of Education, Science, and Technology (MEST) (Grant No. NRF-2014R1A1A2060078). J.A., T.M.G., and F.B.P. gratefully acknowledge partial support from the Center on Nanostructuring for Efficient Energy Conversion (CNEEC) at Stanford University, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001060.en_US
dc.language.isoenen_US
dc.publisherPERGAMON-ELSEVIER SCIENCE LTDen_US
dc.subjectYttria-doped ceriaen_US
dc.subjectGrain boundariesen_US
dc.subjectIonic conductorsen_US
dc.subjectNanocrystalline materialsen_US
dc.subjectSolid oxide fuel cellen_US
dc.titleGrain boundary blocking of ionic conductivity in nanocrystalline yttria-doped ceria thin filmsen_US
dc.typeArticleen_US
dc.relation.volume104-
dc.identifier.doi10.1016/j.scriptamat.2015.03.020-
dc.relation.page45-48-
dc.relation.journalSCRIPTA MATERIALIA-
dc.contributor.googleauthorAn, Jihwan-
dc.contributor.googleauthorBae, Jiwoong-
dc.contributor.googleauthorHong, Soonwook-
dc.contributor.googleauthorKoo, Bongjun-
dc.contributor.googleauthorKim, Young-Beom-
dc.contributor.googleauthorGür, Turgut M.-
dc.contributor.googleauthorPrinz, Fritz B.-
dc.relation.code2015001972-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDIVISION OF MECHANICAL ENGINEERING-
dc.identifier.pidybkim-
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COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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