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dc.contributor.authorJohansson, Andreas
dc.contributor.authorTsai, Hung-Chieh
dc.contributor.authorAumanen, Jukka
dc.contributor.authorKoivistoinen, Juha
dc.contributor.authorMyllyperkiö, Pasi
dc.contributor.authorHung, Yi-Zhe
dc.contributor.authorChuang, Min-Chiang
dc.contributor.authorChen, Chia-Hao
dc.contributor.authorWoon, Wei Yen
dc.contributor.authorPettersson, Mika
dc.date.accessioned2017-01-12T07:29:33Z
dc.date.available2019-01-02T22:35:38Z
dc.date.issued2017
dc.identifier.citationJohansson, A., Tsai, H.-C., Aumanen, J., Koivistoinen, J., Myllyperkiö, P., Hung, Y.-Z., Chuang, M.-C., Chen, C.-H., Woon, W. Y., & Pettersson, M. (2017). Chemical composition of two-photon oxidized graphene. <i>Carbon</i>, <i>115</i>, 77–82. <a href="https://doi.org/10.1016/j.carbon.2016.12.091" target="_blank">https://doi.org/10.1016/j.carbon.2016.12.091</a>
dc.identifier.otherCONVID_26433637
dc.identifier.otherTUTKAID_72370
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/52706
dc.description.abstractChemical composition of two-photon oxidized single-layer graphene is studied by micrometer X-ray photoelectron spectroscopy (XPS). Oxidized areas with a size of 2 × 2 μm2 are patterned on graphene by tightly focused femtosecond pulsed irradiation under air atmosphere. The degree of oxidation is controlled by varying the irradiation time. The samples are characterized by four wave mixing (FWM) imaging and Raman spectroscopy/imaging. Micrometer-XPS is used to study local chemical composition of oxidized areas. XPS imaging shows good contrast between oxidized and non-oxidized areas. Gradual oxidation is observed from growth of signals attributed mainly to hydroxyl (Csingle bondOH) and epoxide (Csingle bondOsingle bondC) groups with a minor contribution of carboxylic groups. The highly oxidized areas are characterized by ∼40% of carbon atoms involved in hydroxyl and ∼25% in epoxide groups. The Raman peaks of oxidized graphene are relatively narrow indicating less disordered material than what is typically observed for graphene oxide.
dc.language.isoeng
dc.publisherPergamon
dc.relation.ispartofseriesCarbon
dc.subject.otherchemical compositions
dc.titleChemical composition of two-photon oxidized graphene
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201701091101
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosKemian laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.laitosDepartment of Chemistryen
dc.contributor.oppiaineFysikaalinen kemiafi
dc.contributor.oppiaineNanoscience Centerfi
dc.contributor.oppiainePhysical Chemistryen
dc.contributor.oppiaineNanoscience Centeren
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2017-01-09T16:15:09Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange77–82
dc.relation.issn0008-6223
dc.relation.numberinseries0
dc.relation.volume115
dc.type.versionacceptedVersion
dc.rights.copyright© 2017 Elsevier Ltd. This is a final draft version of an article whose final and definitive form has been published by Elsevier. Published in this repository with the kind permission of the publisher.
dc.rights.accesslevelopenAccessfi
dc.relation.doi10.1016/j.carbon.2016.12.091


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