Isotope- and Thickness-Dependent Friction of Water Layers Intercalated Between Graphene and Mica

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dc.contributor.authorLee, Hyunsooko
dc.contributor.authorKo, Jae Hyeonko
dc.contributor.authorSong, Hee Chanko
dc.contributor.authorSalmeron, Miquelko
dc.contributor.authorKim, Yong-Hyunko
dc.contributor.authorPark, Jeong Youngko
dc.date.accessioned2018-04-24T02:16:00Z-
dc.date.available2018-04-24T02:16:00Z-
dc.date.created2018-03-26-
dc.date.created2018-03-26-
dc.date.created2018-03-26-
dc.date.created2018-03-26-
dc.date.issued2018-03-
dc.identifier.citationTRIBOLOGY LETTERS, v.66, no.36-
dc.identifier.issn1023-8883-
dc.identifier.urihttp://hdl.handle.net/10203/241098-
dc.description.abstractThe lubricating properties of water have been discussed extensively for millennia. Water films can exhibit wearless high friction in the form of cold ice, or act as lubricants in skating and skiing when a liquid. At the fundamental level, friction is the result of a balance between the rate of energy generation by phonon excitation during sliding and drainage of the energy from the interface by coupling with bulk atoms. Using atomic force microscopy, we found that when H2O intercalates between graphene and mica, it increases the friction between the tip and the substrate, dependent on the thickness of the water and graphene layers, while the magnitude of the increase in friction was reduced by D2O intercalation. With the help of first-principles density functional theory calculations, we explain this unexpected behavior by the increased spectral range of the vibration modes of graphene caused by water, and by better overlap of the graphene vibration modes with mica phonons, which favors more efficient energy dissipation. The larger increase in friction with H2O versus D2O shows that the high-frequency vibration modes of the water molecules play a very important role in the transfer of the vibrational energy of the graphene to the phonon bath of the substrate.-
dc.languageEnglish-
dc.publisherSPRINGER/PLENUM PUBLISHERS-
dc.titleIsotope- and Thickness-Dependent Friction of Water Layers Intercalated Between Graphene and Mica-
dc.typeArticle-
dc.identifier.wosid000426475600046-
dc.identifier.scopusid2-s2.0-85040988891-
dc.type.rimsART-
dc.citation.volume66-
dc.citation.issue36-
dc.citation.publicationnameTRIBOLOGY LETTERS-
dc.identifier.doi10.1007/s11249-018-0984-3-
dc.contributor.localauthorKim, Yong-Hyun-
dc.contributor.localauthorPark, Jeong Young-
dc.contributor.nonIdAuthorLee, Hyunsoo-
dc.contributor.nonIdAuthorSalmeron, Miquel-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorPhonon mode-
dc.subject.keywordAuthorExcitation and transfer-
dc.subject.keywordAuthorWater molecules-
dc.subject.keywordAuthorNanoscale friction-
dc.subject.keywordPlusATOMIC-FORCE MICROSCOPY-
dc.subject.keywordPlusAUGMENTED-WAVE METHOD-
dc.subject.keywordPlusRAMAN-SPECTROSCOPY-
dc.subject.keywordPlusNANOSCALE FRICTION-
dc.subject.keywordPlusLATERAL FORCE-
dc.subject.keywordPlusSURFACE-
dc.subject.keywordPlusFILMS-
dc.subject.keywordPlusAPPROXIMATION-
dc.subject.keywordPlusCONDENSATION-
dc.subject.keywordPlusCALIBRATION-
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