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Cyan Ni1-xAl2+2x/3□x/3O4 single phase pigments synthesis and modification for electrophoretic inks formulation

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
dc.contributor.authorSERMENT, Béatrice
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.authorDEMOURGUES, Alain
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorNOËL, Amélie
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorFLEURY, Guillaume
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorCLOUTET, Eric
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorHADZIIOANNOU, Georges
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorBROCHON, Cyril
dc.date.issued2020-07-24
dc.identifier.issn2470-1343
dc.description.abstractEnCyan Ni1-xAl2+2x/3O4 single phase pigments with various Ni:Al atomic ratios (from 1:2 down to 1:4) have been prepared by sol gel route (Pechini) followed by post-annealing treatments. Nickel aluminates crystallize in the well-known spinel structure (Fd-3m space group) where metals are located at two different Wyckoff positions: 16d (octahedron) and 8a (tetrahedron). Based on XRD Rietveld refinements, Ni 2+ cations are shown to be partially located in both tetrahedral and octahedral sites and, in addition, cationic vacancies occupy Oh environment. In the pure phase series, Ni/Al = 0.35, 0.40, 0.45, as the Al content increases, the Ni 2+ rate in Td site decreases for Ni/Al=0.45, thus altering the cyan color ; within this series, the most saturated cyan coloration is reached for the highest Al concentration. Inorganic pigment drawbacks are their high density and hydrophilic surface, which induced sedimentation and aggregation in non-polar media used in electrophoretic inks. Hybrid core shell particles pigments have been synthesized from cyan pigments by using nitroxide mediated radical polymerization (NMRP) with methyl methacrylate monomer in isopar G leading to a dispersion of electrically charged hybrids in apolar media. Surface functionalization of the pigments by OTS and DTS modifiers have been compared. The 2 inorganic pigments are successfully encapsulated by organic shells to allow a strong decrease of their density. Cyan inks, adequate for their use in e-book readers or other electrophoretic displays, taking further advantage of the high contrast ratio and reflectivity of inorganic pigments as regards to organic dyes, have been stabilized.
dc.description.sponsorship“Plate-forme de l'Université de Bordeaux pour l'organique électronique imprimable : de la molécule aux dispositifs et systèmes intégrés - valorisation et commercialisation” - ANR-10-EQPX-0028
dc.language.isoen
dc.publisherACS Publications
dc.subject.enElectrophoretic inks
dc.subject.encyan pigment
dc.subject.enspinel
dc.subject.enhybrids particles
dc.subject.enPechini
dc.subject.endispersion polymerization
dc.title.enCyan Ni1-xAl2+2x/3□x/3O4 single phase pigments synthesis and modification for electrophoretic inks formulation
dc.typeArticle de revue
dc.identifier.doi10.1021/acsomega.0c01289
dc.subject.halChimie/Polymères
dc.subject.halChimie/Chimie inorganique
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
dc.subject.halChimie/Matériaux
bordeaux.journalACS Omega
bordeaux.peerReviewedoui
hal.identifierhal-02908162
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02908162v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=ACS%20Omega&rft.date=2020-07-24&rft.eissn=2470-1343&rft.issn=2470-1343&rft.au=SERMENT,%20B%C3%A9atrice&GAUDON,%20Manuel&DEMOURGUES,%20Alain&NO%C3%8BL,%20Am%C3%A9lie&FLEURY,%20Guillaume&rft.genre=article


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