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RESEARCH PRODUCT

Opals infiltrated with a stimuli-responsive hydrogel for ethanol vapor sensing

Leonardo D'acquistoAntonino ParisiClelia DispenzaGabriele AdamoRiccardo PerniceSalvatore StivalaAlessandro BusaccaDario SpigolonMaria Antonietta Sabatino

subject

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 spectrum

description

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.

yearjournalcountryeditionlanguage
2013-10-08Optical Materials Express
https://doi.org/10.1364/ome.3.001820