Bottom-up fabrication of 3D organic nanostructures on Si(100) surfaces has been achieved by a two-step procedure. Tetradentate cavitand I was grafted on the Si surface together with 1-octene (Oct) as a spatial spectator by photochemical hydrosilylation. Ligand exchange between grafted cavitand 1 and self-assembled homocage 2, derived from cavitand 5 bearing a fluorescence marker, led to the formation of coordination cages on Si(100). Formation, quantification, and distribution of the nanoscale molecular containers on a silicon surface was assessed by using three complementary analytical techniques (AFM, XPS, and fluorescence) and validated by control experiments on cavitand-free silicon surfaces. Interestingly, the fluorescence of pyrene at approximate to 4 nm above the Si(100) surface can be clearly observed.

Self-Assembly of Nanosize Coordination Cages on Si(100) Surfaces / Busi, Marco; Laurenti, M.; Condorelli, G. G.; Motta, A.; Favazza, M.; Fragal, I. L.; Montalti, M.; Prodi, L.; Dalcanale, Enrico. - In: CHEMISTRY-A EUROPEAN JOURNAL. - ISSN 0947-6539. - 13:24(2007), pp. 6891-6898. [10.1002/chem.200700496]

Self-Assembly of Nanosize Coordination Cages on Si(100) Surfaces

BUSI, Marco;DALCANALE, Enrico
2007-01-01

Abstract

Bottom-up fabrication of 3D organic nanostructures on Si(100) surfaces has been achieved by a two-step procedure. Tetradentate cavitand I was grafted on the Si surface together with 1-octene (Oct) as a spatial spectator by photochemical hydrosilylation. Ligand exchange between grafted cavitand 1 and self-assembled homocage 2, derived from cavitand 5 bearing a fluorescence marker, led to the formation of coordination cages on Si(100). Formation, quantification, and distribution of the nanoscale molecular containers on a silicon surface was assessed by using three complementary analytical techniques (AFM, XPS, and fluorescence) and validated by control experiments on cavitand-free silicon surfaces. Interestingly, the fluorescence of pyrene at approximate to 4 nm above the Si(100) surface can be clearly observed.
2007
Self-Assembly of Nanosize Coordination Cages on Si(100) Surfaces / Busi, Marco; Laurenti, M.; Condorelli, G. G.; Motta, A.; Favazza, M.; Fragal, I. L.; Montalti, M.; Prodi, L.; Dalcanale, Enrico. - In: CHEMISTRY-A EUROPEAN JOURNAL. - ISSN 0947-6539. - 13:24(2007), pp. 6891-6898. [10.1002/chem.200700496]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/1629684
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