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Nanofiber‐directed anisotropic self‐assembly of CdSe–CdS quantum rods for linearly polarized light emission evidenced by quantum rod orientation microscopy

hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierDepartment of Organic Chemistry
dc.contributor.authorCHAKRABARTY, Arkajyoti
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorRAFFY, Guillaume
hal.structure.identifierDepartment of Organic Chemistry
dc.contributor.authorMAITY, Mitasree
hal.structure.identifierUniversity of the Basque Country = Euskal Herriko Unibertsitatea [UPV / EHU]
dc.contributor.authorGARTZIA-RIVERO, Leire
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.authorAYMONIER, Cyril
hal.structure.identifierDepartment of Organic Chemistry
dc.contributor.authorMAITRA, Uday
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorDEL GUERZO, André
dc.date.issued2018-09
dc.identifier.issn1613-6810
dc.description.abstractEnHybrid soft materials composed of CdSe–CdS nanorods or “quantum rods” (QRs) and the fluorescent 2,3‐didecyloxyanthracene (DDOA) low molecular weight organogelator are obtained through self‐assembly. Spectroscopy, microscopy, and rheology studies show that the QRs and DDOA coassemble, thereby stabilizing the organogels. Depending on the QR load and excitation wavelength, single nanofibers (NFs) of the hybrid gel display either sharp polarized red luminescence (under green excitation), or dual perpendicularly polarized blue and red emissions (under UV excitation). Transmission electron microscopy, microspectroscopy, and quantum rod orientation microscopy (QROM) reveal that QRs align along the organogel NFs with order parameters reaching 76% and 87%. This paves the way for obtaining surfaces of QR/NF assemblies yielding sharp red linearly polarized emission. In addition, this work demonstrates that QRs can be used more generally to probe nanostructured soft materials, even nonemissive ones. QROM allows to establish maps of the orientation of single QRs dispersed onto or within a gel network by measuring the polarization of the emission of the individual QRs. As occurs within this work in which QRs and NFs interact, the orientation of each QR reveals information on the underlying nanostructure (such as surface striation, bundle formation, and helicity).
dc.language.isoen
dc.publisherWiley-VCH Verlag
dc.title.enNanofiber‐directed anisotropic self‐assembly of CdSe–CdS quantum rods for linearly polarized light emission evidenced by quantum rod orientation microscopy
dc.typeArticle de revue
dc.identifier.doi10.1002/smll.201802311
dc.subject.halChimie/Matériaux
bordeaux.journalSmall
bordeaux.page1802311 (10 p.)
bordeaux.volume14
bordeaux.issue37
bordeaux.peerReviewedoui
hal.identifierhal-01878484
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01878484v1
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