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Continuous supercritical synthesis of high quality UV-emitting ZnO nanocrystals for optochemical applications

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorILIN, Evgeniy S.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMARRE, Samuel
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorJUBERA, Veronique
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorAYMONIER, Cyril
dc.date.issued2013
dc.identifier.issn2050-7526
dc.description.abstractEnZnO nanocrystals (NCs) are of increasing interest in many industrial applications especially in the field of optochemical sensors. We recently demonstrated the synthesis of excitonic luminescent ZnO NCs using the perfectly controlled environment offered by supercritical microfluidics. However, the limited production rates of such a microscale synthesis approach make it essential to develop scaled-up continuous supercritical synthesis processes. Here, we investigate the influence of the scale-up effect from continuous microfluidic up to millifluidic systems over the synthesized ZnO NCs' optical properties. We also propose to discuss the influence of reactor's dimensions, as a consequence of different hydrodynamics regimes, on the characteristics of ZnO NCs. The obtained ZnO NCs have various shapes depending on the considered set-up. A strong excitonic-only emission in the UV region in room temperature photoluminescence (PL) spectra is obtained from all types of reactors, demonstrating the success of the scale-up process for higher production rates (up to 100 mg per hour).
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.subject.enNanocrystal
dc.subject.enZinc Oxides
dc.subject.enSupercritical microfluidics
dc.subject.enLuminescence
dc.subject.enChemical synthesis
dc.title.enContinuous supercritical synthesis of high quality UV-emitting ZnO nanocrystals for optochemical applications
dc.typeArticle de revue
dc.identifier.doi10.1039/C3TC30737A
dc.subject.halChimie/Matériaux
dc.subject.halChimie/Chimie inorganique
bordeaux.journalJournal of Materials Chemistry C
bordeaux.page5058-5063
bordeaux.volume1
bordeaux.issue33
bordeaux.peerReviewedoui
hal.identifierhal-00858809
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00858809v1
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