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dc.contributor.authorWei, Di
dc.contributor.authorLi, Hongwei
dc.contributor.authorHan, Dongxue
dc.contributor.authorZhang, Qixian
dc.contributor.authorNiu, Li
dc.contributor.authorYang, Huafeng
dc.contributor.authorBower, Chris
dc.contributor.authorAndrew, Piers
dc.contributor.authorRyhänen, Tapani
dc.date.accessioned2017-05-03T14:57:34Z
dc.date.available2017-05-03T14:57:34Z
dc.date.issued2011
dc.date.modified2013-08-22T22:44:34Z
dc.identifier.issn09574484
dc.identifier.doi10.1088/0957-4484/22/24/245702
dc.identifier.urihttp://hdl.handle.net/10072/52703
dc.description.abstractDifferent graphene inks have been synthesized by chemical methods. These uniform dispersions were stabilized by various functional groups such as room temperature ionic liquid, polyaniline, polyelectrolyte (poly[2,5-bis(3-sulfonatopropoxy)-1,4-ethynylphenylene-alt-1,4-ethynylphenylene] sodium salt) and poly(styrenesulfonate) (PSS). The dispersions can be easily cast into high-quality, free-standing films but with very different physiochemical properties such as surface tension and adhesion. SEM and AFM methods have been applied to have a detailed study of the properties of the inks. It is found that graphenes modified by p-type polyaniline show the highest surface tension. Diverse surface adhesive properties to the substrate are also found with various functional groups. The different viscoelasticities of graphene inks were related to the microscopic structure of their coating layer and subsequently related to the configuration, chemistry and molecular dimensions of the modifying molecules to establish the property-structure relationship. Modifications of graphene inks made from chemical reduction cannot only enable cost-effective processing for printable electronics but also extend the applications into, for example, self-assembly of graphene via bottom-up nano-architecture and surface energy engineering of the graphenes. To fabricate useful devices, understanding the surface properties of graphene inks is very important. It is the first paper of this kind to study the surface tension and adhesion of graphene influenced by different functional groups.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherInstitute of Physics Publishing Ltd.
dc.publisher.placeUnited Kingdom
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom245702-1
dc.relation.ispartofpageto245702-7
dc.relation.ispartofissue24
dc.relation.ispartofjournalNanotechnology
dc.relation.ispartofvolume22
dc.rights.retentionY
dc.subject.fieldofresearchEngineering not elsewhere classified
dc.subject.fieldofresearchcode099999
dc.titleProperties of graphene inks stabilized by different functional groups
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.date.issued2011
gro.hasfulltextNo Full Text
gro.griffith.authorYang, Huafeng


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