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dc.contributor.authorClark, Rhiannon M
dc.contributor.authorCarey, Benjamin J
dc.contributor.authorDaeneke, Torben
dc.contributor.authorAtkin, Paul
dc.contributor.authorBhaskaran, Madhu
dc.contributor.authorLatham, Kay
dc.contributor.authorCole, Ivan S
dc.contributor.authorKalantar-zadeh, Kourosh
dc.date.accessioned2018-07-26T04:25:14Z
dc.date.available2018-07-26T04:25:14Z
dc.date.issued2015
dc.identifier.issn2040-3364
dc.identifier.doi10.1039/c5nr04790k
dc.identifier.urihttp://hdl.handle.net/10072/173730
dc.description.abstractA surfactant assisted technique has been used to promote the exfoliation of molybdenum disulphide (MoS2) in a water–ethanol mixture, to avoid the use of harsh organic solvents, whilst still producing sufficient concentration of MoS2 in suspension. The exfoliated flakes are converted into MoS2 quantum dots (QDs), through a hydrothermal procedure. Alternatively, when the flakes are processed with precursors for zinc sulphide (ZnS) synthesis, a simultaneous break-down and composite growth is achieved. The products are separated by centrifugation, into large ZnS spheres (200–300 nm) and small MoS2–ZnS hybrid QD materials (<100 nm), of which, the latter show favorable optical properties. Two concurrent photoluminescent (PL) peaks are seen at 380 and 450 nm, which are assigned to MoS2 and ZnS components of QDs, respectively. The PL emission from MoS2–ZnS QDs is of high energy and is more intense than the bare MoS2 flakes or QDs, with a quantum yield as high as 1.96%. The emission wavelength is independent from the excitation wavelength and does not change over time. Due to such properties, the developed hybrid QDs are potentially suitable for imaging and sensing applications.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherRoyal Society of Chemistry
dc.relation.ispartofpagefrom16763
dc.relation.ispartofpageto16772
dc.relation.ispartofissue40
dc.relation.ispartofjournalNanoscale
dc.relation.ispartofvolume7
dc.subject.fieldofresearchNanotechnology not elsewhere classified
dc.subject.fieldofresearchPhysical Sciences
dc.subject.fieldofresearchChemical Sciences
dc.subject.fieldofresearchTechnology
dc.subject.fieldofresearchcode100799
dc.subject.fieldofresearchcode02
dc.subject.fieldofresearchcode03
dc.subject.fieldofresearchcode10
dc.titleTwo-step synthesis of luminescent MoS2-ZnS hybrid quantum dots
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionAccepted Manuscript (AM)
gro.rights.copyright© 2015 Royal Society of Chemistry. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorCole, Ivan


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