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hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDA ROCHA, Mathias
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorROUGIER, Aline
dc.date.issued2016-04
dc.identifier.issn0947-8396
dc.description.abstractEnElectrochromic properties, known as a reversible modulation of the optical properties under an applied voltage, of NiO thin films are discussed in respect of the film stoichiometry. Using radio-frequency magnetron sputtering, non-stoichiometric "NiO" thin films of good crystallinity were grown at room temperature from low oxygen partial pressure [i.e., above 2 % P(O2/Ar + O2)]. A further increase in oxygen partial pressure leads to conductive brownish films containing a large amount of Ni3+. 2 %-Ni1- x O thin films exhibit significant EC performance in lithium-based electrolyte with a transmittance modulation of 25 %. If it is generally accepted that this optical modulation is due to an insertion of small cations, the presence of additional surface phenomena is also shown. The cycling of full device, based on the association of WO3 and "NiO" in temperature up to 60 °C and down to -35 °C confirms expected increase and decrease in capacity while surprisingly the optical switch from a transparent to a neutral gray color appears slightly modified.
dc.language.isoen
dc.publisherSpringer Verlag
dc.title.enElectrochromism of non-stoichiometric NiO thin film: as single layer and in full device
dc.typeArticle de revue
dc.identifier.doi10.1007/s00339-016-9923-z
dc.subject.halChimie/Matériaux
bordeaux.journalApplied physics. A, Materials science & processing
bordeaux.volume122
bordeaux.issue4
bordeaux.peerReviewedoui
hal.identifierhal-01327064
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01327064v1
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