Electrical Detection of Self-Assembled Polyelectrolyte Multilayers by a Thin Film Resistor

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dc.creatorNeff, Petra A.
dc.creatorNaji, Ali
dc.creatorEcker, Christof
dc.creatorNickel, Bert
dc.creatorvon Klitzing, Regine
dc.creatorBausch, Andreas R.
dc.date2006-01-05
dc.date.accessioned2026-07-07T06:57:21Z
dc.date.available2026-07-07T06:57:21Z
dc.descriptionThe build up of polyelectrolyte multilayers (PEMs) was observed by a silicon-on-insulator (SOI) based thin film resistor. Differently charged polyelectrolytes adsorbing to the sensor surface result in defined potential shifts, which decrease with the number of layers deposited. We model the response of the device assuming electrostatic screening of polyelectrolyte charges by mobile ions within the PEMs. The Debye screening length inside the PEMs was found to be increased compared to the value corresponding to the bulk solution. Furthermore the partitioning of mobile ions between the bulk phase and the polyelectrolyte film was employed to calculate the dielectric constant of the PEMs and the concentration of mobile charges.
dc.description18 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0601090
dc.identifierhttp://arxiv.org/abs/cond-mat/0601090
dc.identifierMacromolecules 39, 463 (2006)
dc.identifierdoi:10.1021/ma0519213
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/106938
dc.subjectSoft Condensed Matter
dc.subjectMaterials Science
dc.titleElectrical Detection of Self-Assembled Polyelectrolyte Multilayers by a Thin Film Resistor
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