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Continuous synthesis of high quality CdSe quantum dots in supercritical fluids

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorCHAKRABARTY, Arkajyoti
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMARRE, Samuel
hal.structure.identifierDepartment of Chemistry [Amherst]
dc.contributor.authorLANDIS, Ryan F.
hal.structure.identifierDepartment of Chemistry [Amherst]
dc.contributor.authorROTELLO, Vincent M.
hal.structure.identifierDepartment of Organic Chemistry [Bangalore]
dc.contributor.authorMAITRA, Uday
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorGUERZO, André Del
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorAYMONIER, Cyril
dc.date.issued2015
dc.identifier.issn2050-7526
dc.description.abstractEnWe demonstrate in here a powerful scalable technology to synthesize continuously high quality CdSe quantum dots (QDs) in supercritical hexane. Using a low cost, highly thermally stable Cd-precursor, cadmium deoxycholate, the continuous synthesis is performed in 400 μm ID stainless steel capillaries resulting in CdSe QDs having sharp full-width-at-half-maxima (23 nm) and high photoluminescence quantum yields (45–55%). Transmission electron microscopy images show narrow particles sizes distribution (σ ≤ 5%) with well-defined crystal lattices. Using two different synthesis temperatures (250 °C and 310 °C), it was possible to obtain zinc blende and würtzite crystal structures of CdSe QDs, respectively. This synthetic approach allows achieving substantial production rates up to 200 mg of QDs per hour depending on the targeted size, and could be easily scaled to gram per hour.
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.title.enContinuous synthesis of high quality CdSe quantum dots in supercritical fluids
dc.typeArticle de revue
dc.identifier.doi10.1039/c5tc01115a
dc.subject.halChimie/Matériaux
dc.subject.halChimie/Chimie inorganique
bordeaux.journalJournal of Materials Chemistry C
bordeaux.page7561-7566
bordeaux.volume3
bordeaux.issue29
bordeaux.peerReviewedoui
hal.identifierhal-01179462
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01179462v1
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