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Silver nanoshells with optimized infrared optical response: synthesis for thin-shell formation, and optical/thermal properties after embedding in polymeric films

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLERMUSIAUX, Laurent
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorROACH, Lucien
hal.structure.identifierLaboratoire du Futur [LOF]
dc.contributor.authorLEHTIHET, Moncef
dc.contributor.authorPLISSONNEAU, Marie
dc.contributor.authorBERTRY, Laure
dc.contributor.authorBUISSETTE, Valérie
hal.structure.identifierSolvay (France)
dc.contributor.authorLE MERCIER, Thierry
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDUGUET, Etienne
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDRISKO, Glenna
hal.structure.identifierLaboratoire du Futur [LOF]
dc.contributor.authorLENG, Jacques
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorTRÉGUER-DELAPIERRE, Mona
dc.date.issued2023-02-03
dc.identifier.issn2079-4991
dc.description.abstractEnWe describe a new approach to making ultrathin Ag nanoshells with a higher level of extinction in the infrared than in the visible. The combination of near-infrared active ultrathin nanoshells with their isotropic optical properties is of interest for energy-saving applications. For such applications, the morphology must be precisely controlled, since the optical response is sensitive to nanometer-scale variations. To achieve this precision, we use a multi-step, reproducible, colloidal chemical synthesis. It includes the reduction of Tollens' reactant onto Sn 2+-sensitized silica particles, followed by silver-nitrate reduction by formaldehyde and ammonia. The smooth shells are about 10 nm thick, on average, and have different morphologies: continuous, percolated, and patchy, depending on the quantity of the silver nitrate used. The shell-formation mechanism, studied by optical spectroscopy and high-resolution microscopy, seems to consist of two steps: the formation of very thin and flat patches, followed by their guided regrowth around the silica particle, which is favored by a high reaction rate. The optical and thermal properties of the core-shell particles, embedded in a transparent poly(vinylpyrrolidone) film on a glass substrate, were also investigated. We found that the Ag-nanoshell films can convert 30% of the power of incident near-infrared light into heat, making them very suitable in window glazing for radiative screening from solar light.
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux
dc.language.isoen
dc.publisherMDPI
dc.subject.ennanoshells
dc.subject.ensilver
dc.subject.enultrathin
dc.subject.eninfrared
dc.subject.ensynthesis
dc.subject.enthin film
dc.subject.ensolar energy control
dc.title.enSilver nanoshells with optimized infrared optical response: synthesis for thin-shell formation, and optical/thermal properties after embedding in polymeric films
dc.typeArticle de revue
dc.identifier.doi10.3390/nano13030614
dc.subject.halChimie/Matériaux
bordeaux.journalNanomaterials
bordeaux.page614 (14 p.)
bordeaux.volume13
bordeaux.issue3
bordeaux.peerReviewedoui
hal.identifierhal-03977125
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03977125v1
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