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Efficient passivation of Ag nanowires with 11‐mercaptoundecanoic acid probed using in situ total‐internal‐reflection surface‐enhanced Raman scattering spectroscopy

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPLISSONNEAU, Marie
hal.structure.identifierInstitute for Nanotechnology [Waterloo]
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMADEIRA, Alexandra
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorTALAGA, David
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorBONHOMMEAU, Sébastien
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorSERVANT, Laurent
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorVALLÉE, Renaud
hal.structure.identifierPlateforme Aquitaine de Caractérisation des Matériaux [PLACAMAT]
dc.contributor.authorLABRUGÈRE, Christine
hal.structure.identifierUniversity of Waterloo [Waterloo]
dc.contributor.authorGOLDTHORPE, Irene
dc.contributor.authorPAUTROT-D'ALENCON, Lauriane
dc.contributor.authorLE MERCIER, Thierry
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorTRÉGUER-DELAPIERRE, Mona
dc.date.issued2019
dc.identifier.issn2199-692X
dc.description.abstractEnA promising passivation strategy of one class of Ag nanostructures of high interest for optoelectronics, namely Ag nanowires (AgNWs), with 11‐mercaptoundecanoic acid (MUA) is described. Combining XPS, electron microscopy and original in‐situ total‐internal‐reflection (TIR) surface‐enhanced Raman scattering (SERS) spectroscopic measurements, the substitution of polyvinylpyrrolidone (PVP) molecules on as‐synthesized PVP‐coated AgNWs by their MUA counterparts is clearly demonstrated. The relevance of the SERS approach to examine the anchoring of the MUA onto the silver surface of specific AgNWs with pentagonal cross‐sections is supported by FDTD simulations. In particular, the TIR‐SERS technique reveals that the PVP‐MUA substitution process can be divided into two main steps, namely (i) the desorption of PVP molecules associated with the anchoring of MUA molecules via the formation of Ag−OOC and Ag−S bonds (accomplished within 40 min), and (ii) the subsequent reorientation of MUA molecules to form only Ag−S bonds (finished in 90 min). The resulting passivation of AgNWs with MUA significantly improves their resistance to corrosion, which is crucial for future commercial applications.
dc.language.isoen
dc.publisherWiley
dc.subject.enPassivation
dc.subject.enNoble metals
dc.subject.enNanowires
dc.subject.enSilver
dc.subject.enPlasmonic nanostructures
dc.title.enEfficient passivation of Ag nanowires with 11‐mercaptoundecanoic acid probed using in situ total‐internal‐reflection surface‐enhanced Raman scattering spectroscopy
dc.typeArticle de revue
dc.identifier.doi10.1002/cnma.201900068
dc.subject.halChimie/Matériaux
bordeaux.journalChemNanoMat
bordeaux.page1044-1049
bordeaux.volume5
bordeaux.issue8
bordeaux.peerReviewedoui
hal.identifierhal-02051412
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02051412v1
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