Afficher la notice abrégée

Nanoparticles (NPs) of WO3-x compounds by polyol route with enhanced photochromic properties

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierCentre d'Optique, Photonique et Laser [COPL]
dc.contributor.authorBOURDIN, Marie
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGAUDON, Manuel
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorWEILL, François
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDUTTINE, Mathieu
hal.structure.identifierPlateforme Aquitaine de Caractérisation des Matériaux [PLACAMAT]
dc.contributor.authorGAYOT, Marion
hal.structure.identifierCentre d'Optique, Photonique et Laser [COPL]
dc.contributor.authorMESSADDEQ, Younès
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCARDINAL, Thierry
dc.date.issued2019
dc.identifier.issn2079-4991
dc.description.abstractEnTungsten trioxide (WO3) is well-known as one of the most promising chromogenic compounds. It has a drastic change of coloration induced from different external stimuli and so its applications are developed as gas sensors, electrochromic panels or photochromic sensors. This paper focuses on the photochromic properties of nanoWO3, with tunable composition (with tunable oxygen sub-stoichiometry). Three reference samples with yellow, blue and black colors were prepared from polyol synthesis followed by post annealing under air, none post-annealing treatment, or a post-annealing under argon atmosphere. These three samples differ in terms of crystallographic structure (cubic system versus monoclinic system), oxygen vacancy concentration, electronic band diagram with occurrence of free or trapped electrons and their photochromic behavior. Constituting one main finding, it is shown that the photochromic behavior is highly dependent on the compound’s composition/color. Rapid and important change of coloration under UV (ultraviolet) irradiation was evidenced especially on the blue compound, i.e., the photochromic coloring efficiency of this compound in terms of contrast between bleached and colored phase, as the kinetic aspect is high. The photochromism is reversible in a few hours. This hence opens a new window for the use of tungsten oxide as smart photochromic compounds.
dc.description.sponsorshipImPRession laser de fibres exOtiques Multi-MaTEriaux - ANR-17-CE08-0042
dc.language.isoen
dc.publisherMDPI
dc.subject.enpolyol synthesis
dc.subject.ennanoparticles
dc.subject.enphotochromism
dc.title.enNanoparticles (NPs) of WO3-x compounds by polyol route with enhanced photochromic properties
dc.typeArticle de revue
dc.identifier.doi10.3390/nano9111555
dc.subject.halChimie/Matériaux
bordeaux.journalNanomaterials
bordeaux.page1555
bordeaux.volume9
bordeaux.issue11
bordeaux.peerReviewedoui
hal.identifierhal-02371014
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02371014v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Nanomaterials&rft.date=2019&rft.volume=9&rft.issue=11&rft.spage=1555&rft.epage=1555&rft.eissn=2079-4991&rft.issn=2079-4991&rft.au=BOURDIN,%20Marie&GAUDON,%20Manuel&WEILL,%20Fran%C3%A7ois&DUTTINE,%20Mathieu&GAYOT,%20Marion&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée