SiC functionalization by porphyrin supersonic molecular beams (Comunicazione a convegno)

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  • SiC functionalization by porphyrin supersonic molecular beams (Comunicazione a convegno) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
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  • L. Aversa, R. Verucchi, M.V. Nardi, M. Bosi, G. Attolini, F. Rossi, B. Watts, L. Nasi, G. Salviati, S. Iannotta (2009)
    SiC functionalization by porphyrin supersonic molecular beams
    in 26th European Conference on Surface Science (ECOSS 26),, Parma
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • L. Aversa, R. Verucchi, M.V. Nardi, M. Bosi, G. Attolini, F. Rossi, B. Watts, L. Nasi, G. Salviati, S. Iannotta (literal)
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  • In: ECOSS26 - 26th European Conference on Surface Science (Parma, 30 Aug - 4 Sept 2009). Abstract, p. 93. European Physical Society, 2009. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • Silicon Carbide (SiC) is a wide band-gap semiconductor that exhibits superior chemical-physical properties, suitable for the realization of high power devices and application in devices working in severe conditions or harsh environments. SiC can grow in different polytypes, mainly hexagonal and cubic. The latter has shown an enhanced biocompatibility, making this material particularly appealing for biocompatible-devices (i.e. biosensors). Functionalization of the inorganic semiconductor surface with organic or bio-molecules represents the route to activate processes at the interface such as biomolecular recognition and adhesion of species of biological interest. However, few theoretical and experimental studies have been reported on the functionalization of SiC surface. The SupersonicMolecular BeamDeposition BeamDeposition (SuMBD) approach [1] has been already used to synthesize thin films of different materials and compounds. The technique has the unique advantage to control the state of beam precursors, e.g. Kinetic Energy (up to tens of eV) and momentum, by controlling the beam's properties (temperature, pressure, seeding). 3C-SiC film [2]on Si(111)7x7 have been synthesized by supersonic beams of C60 at lower Temperatures and higher surface order with respect to MBE experiments. This is achieved by the kinetic activation of the reaction between silicon and carbon and by an improved surface diffusivity. The SuMBD approach is here used to functionalize 3C-SiC thin films and SiC nanowires with organic macrocycles (Porphyrins). The electronic properties at the organic-inorganic interface have been investigated by using synchrotron radiation light. Results concerning core level/valence band photoemission and x-ray absorption will be presented. [1] P. Milani, S. Iannotta, \"Cluster Beam Synthesis on Nano- Structured Materials\" (Springer,1999) [2] R. Verucchi, L. Aversa, G. Ciullo, A. Podestà, P. Milani, S. Iannotta, Europ. Phys. J. B 26, 509 (2002) (literal)
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  • CNR-IFN, Trento, CNR-IMEM, Parma (literal)
Titolo
  • SiC functionalization by porphyrin supersonic molecular beams (literal)
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