Sol-gel synthesis of Zn-thiourea-SiO2 thin films from ((EtO)3Si(CH2)3NHC(=S)NHPh as molecular precursors (Articolo in rivista)

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  • Sol-gel synthesis of Zn-thiourea-SiO2 thin films from ((EtO)3Si(CH2)3NHC(=S)NHPh as molecular precursors (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.solidstatesciences.2004.06.007 (literal)
Alternative label
  • Angelova D.; Armelao L.; Barison S.; Fabrizio M; Gross S.; Sassi A.; Seraglia R.; Tondello E.; Trimmel G.; Venzo A. (2004)
    Sol-gel synthesis of Zn-thiourea-SiO2 thin films from ((EtO)3Si(CH2)3NHC(=S)NHPh as molecular precursors
    in Solid state sciences; Elsevier, Amsterdam (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Angelova D.; Armelao L.; Barison S.; Fabrizio M; Gross S.; Sassi A.; Seraglia R.; Tondello E.; Trimmel G.; Venzo A. (literal)
Pagina inizio
  • 1287 (literal)
Pagina fine
  • 1294 (literal)
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  • http://www.elsevier.com/locate/ssscie (literal)
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  • 6 (literal)
Rivista
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  • 8 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
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  • 1-INSTM and Department of Chemistry, University of Padova, Via Marzolo, 1 Padova, Italy 2,5,6,7,10 : CNR-ISTM and INSTM, University of Padova, Via Marzolo, 1 Padova, Italy 3,4 : CNR-IENI, Corso Stati Uniti, 4 Padova, Italy 8 : Department of Chemistry, University of Padova, Via Marzolo 1, I-35131 Padova, Italy 9 : Institute for Chemistry and Technology of Organic Materials, Graz University of Technology, Stremayrgasse 16 Graz, Austria (literal)
Titolo
  • Sol-gel synthesis of Zn-thiourea-SiO2 thin films from ((EtO)3Si(CH2)3NHC(=S)NHPh as molecular precursors (literal)
Abstract
  • In order to study new and convenient sol-gel syntheses to homogene ous nanocomposites systems based on zinc sulphide clusters embedded in films of silica glass, a thiourea-functionalized silane ((EtO)3Si(CH2)3NHC(=S)NHPh, SilTu) was investigated as starting precursor. Electrospray ionization mass spectrometry (ESI-MS), FT-IR and N MR spectroscopies clearly evidence that SilTu coordinates Zn2+ ions in solution through the thiourea function. Both zinc acetate (Zn(CH3COO)2) and zinc chloride (ZnCl2) were used as zinc source. TheSilTu-Zn2+ complex is also stable under sol-gel conditions. Alcoholic solutions of SilTu, zinc acetate and tetraethoxysilane Si(OEt)4 (TEOS) were used to prepare the thin films by dip-coating. Transparent, homogeneous and crack-free layers were obtained under annealing up to 600 oC. The samples were investigated by X-ray photoelectron spectroscopy (XPS) and secondary ion mass spectrometry (SIMS). Beside ZnS formation, the presence of oxygenated zinc species was observed inside the silica matrix (literal)
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