title: Hybrid organic-inorganic porous semiconductor transducer for multi-parameters sensing.
abstract: Porous silicon (PSi) non-symmetric multi-layers are modified by organic molecular beam deposition of an organic semiconductor, namely the N,N'-1H,1H-perfluorobutyldicyanoperylene-carboxydi-imide (PDIF-CN2). Joule evaporation of PDIF-CN2 into the PSi sponge-like matrix not only improves but also adds transducing skills, making this solid-state device a dual signal sensor for chemical monitoring. PDIF-CN2 modified PSi optical microcavities show an increase of about five orders of magnitude in electric current with respect to the same bare device. This feature can be used to sense volatile substances. PDIF-CN2 also improves chemical resistance of PSi against alkaline and acid corrosion.
authors.affiliation: IMM-CNR, Via P. Castellino 111, Naples 80131, Italy Department of Physics, University of Naples 'Federico II', Via Cinthia, Naples 80100, Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Caliò
authors.affiliation: Department of Physics, University of Naples 'Federico II', Via Cinthia, Naples 80100, Italy.
authors.forename: Antonio
authors.initials: A
authors.lastname: Cassinese
authors.affiliation: IMM-CNR, Via P. Castellino 111, Naples 80131, Italy.
authors.forename: Maurizio
authors.initials: M
authors.lastname: Casalino
authors.affiliation: IMM-CNR, Via P. Castellino 111, Naples 80131, Italy.
authors.forename: Ilaria
authors.initials: I
authors.lastname: Rea
authors.affiliation: CNR-SPIN, University of Naples 'Federico II', Piazzale Tecchio 80, Naples 80125, Italy.
authors.forename: Mario
authors.initials: M
authors.lastname: Barra
authors.affiliation: CNR-SPIN, University of Naples 'Federico II', Piazzale Tecchio 80, Naples 80125, Italy.
authors.forename: Fabio
authors.initials: F
authors.lastname: Chiarella
authors.affiliation: IMM-CNR, Via P. Castellino 111, Naples 80131, Italy luca.destefano@na.imm.cnr.it.
authors.forename: Luca
authors.initials: L
authors.lastname: De Stefano
mesh_terms: D055664:Electrochemical Techniques / Q000379:methods*; D007094:Imides; D008956:Models, Chemical; D016062:Porosity; D012666:Semiconductors
chemical_list: D007094:Imides
keywords: N,N′-1H,1H-perfluorobutyldicyanoperylene-carboxydi-imide; optical and electrical transducer; porous silicon