Layer-by-layer electrostatic self-assembly of nanoscale Fe3O4 particles and polyimide precursor on silicon and silica surfaces

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dc.contributorVirginia Techen
dc.contributor.authorLiu, Y. J.en
dc.contributor.authorWang, Anboen
dc.contributor.authorClaus, Richard O.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.contributor.departmentFiber & ElectroOptics Research Center (FEORC)en
dc.date.accessed2014-03-27en
dc.date.accessioned2014-04-16T14:16:43Zen
dc.date.available2014-04-16T14:16:43Zen
dc.date.issued1997-10-01en
dc.description.abstractMonolayer and multilayer ultrathin films comprised of nanosized iron oxide (Fe3O4) particles and polyimide molecules have been fabricated on single crystal silicon and quartz substrates by a novel layer-by-layer electrostatic self-assembly process. This process involves the alternate dipping of a substrate into an aqueous solution of anionic polyimide precursor (polyamic acid salt, PAATEA), followed by dipping into an aqueous solution of polycation polydiallyldimethylammonium chloride (PDDA) which coats on nanoscale Fe3O4 particles as a stabilizer. The growth process and the structure have been characterized using UV-vis spectroscopy, contact angle, and ellipsometry measurements. The results suggest that well-ordered uniform monolayer and multilayer magnetic films have been formed on silicon and silica surfaces. A recently developed highly sensitive fiber optic magnetic field sensor was used to probe the small magnetic field intensity produced by the multilayer films. (C) 1997 American Institute of Physics.en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationLiu, YJ; Wang, AB; Claus, RO, "Layer-by-layer electrostatic self-assembly of nanoscale Fe3O4 particles and polyimide precursor on silicon and silica surfaces," Appl. Phys. Lett. 71, 2265 (1997); http://dx.doi.org/10.1063/1.120046en
dc.identifier.doihttps://doi.org/10.1063/1.120046en
dc.identifier.issn0003-6951en
dc.identifier.urihttp://hdl.handle.net/10919/47388en
dc.identifier.urlhttp://scitation.aip.org/content/aip/journal/apl/71/16/10.1063/1.120046en
dc.language.isoenen
dc.publisherAIP Publishingen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectMonolayer filmsen
dc.subjectGolden
dc.titleLayer-by-layer electrostatic self-assembly of nanoscale Fe3O4 particles and polyimide precursor on silicon and silica surfacesen
dc.title.serialApplied Physics Lettersen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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