6533b837fe1ef96bd12a2961
RESEARCH PRODUCT
Switching direction of laterally ordered monolayers induced by transfer instability
Antonio RaudinoBruno Pignatarosubject
Materials scienceNon-equilibrium thermodynamicsLANGMUIR-BLODGETT FILM; PATTERNED STRUCTURES; THEORETICAL MODELSInstabilityPhysics::Fluid Dynamicsforce microscopyCondensed Matter::Materials ScienceOpticsMonolayerMaterials ChemistryPerpendicularPATTERNED STRUCTURESPhysical and Theoretical ChemistryThin filmNanoscopic scalePhase diagramLangmuir-Blodgett filmsLANGMUIR-BLODGETT FILMCondensed matter physicsbusiness.industryLangmuir Blodgett filmsSurfaces Coatings and FilmsCondensed Matter::Soft Condensed MatterTHEORETICAL MODELSMeniscusbusinessdescription
Langmuir-Blodgett monolayers may show nanoscopic periodic patterns parallel and/or perpendicular to the transfer direction. The experimental findings are interpreted by a nonequilibrium model based on the stability of surfactant concentration and film thickness coupled fluctuations near the meniscus of a surfactant-covered receding thin film. In the high and low transfer speed limits, periodic fluctuations of the fluid subphase thickness, respectively perpendicular and parallel to the transfer, are selected. A qualitative phase diagram shows how transfer speed and film density manage the pattern shape.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-01-01 |