6533b7d8fe1ef96bd126af5e
RESEARCH PRODUCT
Smart High-κ Nanodielectrics Using Solid Supported Polyoxometalate-Rich Nanostructures
MusumeciC.aRosnesM.h.bGiannazzoF.cSymesM.d.bCroninL.bPignataroB.dsubject
Materials scienceNanostructureMacromolecular SubstancesSurface PropertiesMolecular ConformationGeneral Physics and AstronomyNanotechnologyDielectricsurfacesSmart materialScanning probe microscopyMaterials TestingElectric ImpedanceIntelligent materialsGeneral Materials ScienceParticle SizeCation exchangesDielectric behaviorPolyoxometalateHexagonal crystal systemPolyoxometalatesGeneral EngineeringOxidesself-assemblyTungsten CompoundsSelf assemblyNanodielectricsNanostructuresHigh-κ NanodielectricSelf assembly processScanning probe microscopyLangmuir-Blodgett depositionPositive ionsPolyoxometalateSelf-assembly2D-hexagonalAmbient conditionsdescription
Utilizing Langmuir-Blodgett deposition and scanning probe microscopy, we have investigated the extent to which cations alter the self-assembly processes of hybrid polyoxometalates (POMs) on surfaces. The well-defined 2D hexagonal nanostructures obtained were extensively characterized and their properties were studied, and this has revealed fascinating dielectric behavior and reversible capacitive properties. The nanostructures are extremely stable under ambient conditions, and yet exhibit fascinating self-patterning upon heating. These findings present POMs as effective smart nanodielectrics and open up a new field for future POM applications. (c) 2011 American Chemical Society.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-01-01 |