Search results for "Optical sensing and sensor"

showing 3 items of 3 documents

Ethanol vapor optical sensors based on polystyrene opals infiltrated with hydrogel

2013

Optical sensing and sensornanostructured hydrogelphotonic crystalsSettore CHIM/07 - Fondamenti Chimici Delle TecnologieSettore ING-INF/01 - Elettronica
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Opals infiltrated with a stimuli-responsive hydrogel for ethanol vapor sensing

2013

We report on a novel class of optical materials for ethanol vapor sensing, based on polystyrene opals infiltrated with an innovative stimuli responsive hydrogel. We describe the fabrication process of the bare polystyrene opals and their subsequent infiltration. The optical characterization of the photonic crystal templates was performed to prove the good quality of the samples. Measurements on the infiltrated opals showed that the transmission spectra in the visible range strongly change at varying concentrations of ethanol vapor. The fabricated structures show a linear optical response in the visible range, for high values of ethanol concentration.

EthanolMaterials scienceFabricationNanostructure fabrication.technology industry and agricultureSettore ING-INF/02 - Campi ElettromagneticiNanotechnologySettore ING-INF/01 - ElettronicaElectronic Optical and Magnetic MaterialsOPALS (Ogren Plant Allergy Scale)Optical sensing and sensorchemistry.chemical_compoundchemistryChemical engineeringOptical materialsPhotonic crystalSettore CHIM/07 - Fondamenti Chimici Delle Tecnologiesense organsPolystyreneRefractive indexPhotonic crystalVisible spectrumOptical Materials Express
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Optical sensors for ethanol vapor based on polystyrene opals infiltrated with hydrogel

2013

This paper deals with a novel class of optical sensors for ethanol vapor, based on polystyrene opals infiltrated with a hydrogel sensitive to ethanol. Optical characterization of such opals has been performed, proving their effectiveness as sensors

Optical sensing and sensorNanostructure fabricationHydrogelsPhotonic crystalSettore CHIM/07 - Fondamenti Chimici Delle TecnologieSettore ING-INF/01 - ElettronicaSensor
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