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Wire‐Like Tip‐To‐Tip Linked Assemblies of CdSe‐CdS Quantum Rods Promoted on Supramolecular Nanofibers of Hybrid Organo‐ and Hydrogels

hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
hal.structure.identifierDepartment of Organic Chemistry
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCHAKRABARTY, Arkajyoti
hal.structure.identifierDepartment of Organic Chemistry
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorMAITY, Mitasree
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorRAFFY, Guillaume
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.issued2020
dc.identifier.issn2199-692X
dc.description.abstractEnA variety of core‐shell CdSe‐CdS nanorods or quantum rods (QRs), both sphere (CdSe) in rod (CdS) and rod (CdSe) in rod (CdS) have been synthesized in a seeded‐growth approach using a very efficient and highly thermally stable steroidal cadmium precursor replacing the more common CdO: cadmium deoxycholate. The core‐shell QRs display high photoluminescence quantum yields (40–75%) and high molar absorption co‐efficient (ϵ=106 M−1 cm−1). Sphere‐in‐rods QRs can be co‐assembled with the organogelator diethylaminolithocholyl iodide in 1,2‐dichlorobenzene and with the hydrogelator calcium cholate in water to form hybrid gels. These organic‐inorganic hybrid soft materials are translucent and brightly red‐luminescent. The nanofibers composing the gel network act as a scaffold to support the dispersed QRs and impede their self‐aggregation. Furthermore, formation of original wire‐like assemblies of the nanorods is promoted in these gels, in particular in the hydrogel. This orientation occurs by a QR tip‐to‐tip interaction and is proposed to be driven by the amphiphilic behaviour of the QRs: laterally capped by negatively charged TGA (thioglycolic acid) ligands and un‐capped on the tips due to TGA unbinding. The combination of nanofiber‐forming hydrogelators and elongated quantum rods is promising in the perspective to form hybrid nanostructures with anisotropic optic or electronic properties
dc.language.isoen
dc.publisherWiley
dc.title.enWire‐Like Tip‐To‐Tip Linked Assemblies of CdSe‐CdS Quantum Rods Promoted on Supramolecular Nanofibers of Hybrid Organo‐ and Hydrogels
dc.typeArticle de revue
dc.identifier.doi10.1002/cnma.201900428
dc.subject.halChimie/Matériaux
bordeaux.journalChemNanoMat
bordeaux.page79-88
bordeaux.volume6
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-02394212
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02394212v1
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