Burning Graphene Layer-by-Layer

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorErmakov, Victor A.
dc.creatorAlaferdov, Andrei V.
dc.creatorVaz, Alfredo R.
dc.creatorPerim, Eric
dc.creatorAutreto, Pedro A. S.
dc.creatorPaupitz, Ricardo
dc.creatorGalvao, Douglas S.
dc.creatorMoshkalev, Stanislav A.
dc.date2015-10-21T20:15:17Z
dc.date2016-10-25T21:08:13Z
dc.date2015-10-21T20:15:17Z
dc.date2016-10-25T21:08:13Z
dc.date2015-06-23
dc.date.accessioned2017-04-06T09:06:26Z
dc.date.available2017-04-06T09:06:26Z
dc.identifierScientific Reports. London: Nature Publishing Group, v. 5, 9 p., 2015.
dc.identifier2045-2322
dc.identifierhttp://hdl.handle.net/11449/129039
dc.identifierhttp://acervodigital.unesp.br/handle/11449/129039
dc.identifierhttp://dx.doi.org/10.1038/srep11546
dc.identifierWOS:000356663700001
dc.identifierWOS000356663700001.pdf
dc.identifierhttp://www.nature.com/articles/srep11546
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/939594
dc.descriptionGraphene, in single layer or multi-layer forms, holds great promise for future electronics and high-temperature applications. Resistance to oxidation, an important property for high-temperature applications, has not yet been extensively investigated. Controlled thinning of multi-layer graphene (MLG), e.g., by plasma or laser processing is another challenge, since the existing methods produce non-uniform thinning or introduce undesirable defects in the basal plane. We report here that heating to extremely high temperatures (exceeding 2000 K) and controllable layer-by-layer burning (thinning) can be achieved by low-power laser processing of suspended high-quality MLG in air in "cold-wall" reactor configuration. In contrast, localized laser heating of supported samples results in non-uniform graphene burning at much higher rates. Fully atomistic molecular dynamics simulations were also performed to reveal details of oxidation mechanisms leading to uniform layer-by-layer graphene gasification. The extraordinary resistance of MLG to oxidation paves the way to novel high-temperature applications as continuum light source or scaffolding material.
dc.languageeng
dc.publisherNature Publishing Group
dc.relationScientific Reports
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleBurning Graphene Layer-by-Layer
dc.typeOtro


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