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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 - ANR-10-IDEX-0003
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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