Luminescence and Amplified Stimulated Emission in CdSe@ZnS NC doped TiO2 and ZrO2 Waveguides (Articolo in rivista)

Type
Label
  • Luminescence and Amplified Stimulated Emission in CdSe@ZnS NC doped TiO2 and ZrO2 Waveguides (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1002/adfm.200600955 (literal)
Alternative label
  • Jacek Jasieniak; Jessica Pacifico; Raffaella Signorini; Alessandro Chiasera; Maurizio Ferrari; Alessandro Martucci; Paul Mulvaney (2007)
    Luminescence and Amplified Stimulated Emission in CdSe@ZnS NC doped TiO2 and ZrO2 Waveguides
    in Advanced functional materials (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Jacek Jasieniak; Jessica Pacifico; Raffaella Signorini; Alessandro Chiasera; Maurizio Ferrari; Alessandro Martucci; Paul Mulvaney (literal)
Pagina inizio
  • 1654 (literal)
Pagina fine
  • 1662 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 17 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • A. Martucci, J. Jasieniak Dipartimento di Ingegneria Meccanica Settore Materiali Università di Padova Via Marzolo, 9, 35131 Padova (Italy) P. Mulvaney, J. Jasieniak, Dr. J. Pacifico School of Chemistry University of Melbourne Parkville, VIC 3010 (Australia) R. Signorini Dipartimento di Scienze Chimiche Università di Padova Via Marzolo, 1, 35131 Padova (Italy) A. Chiasera, M. Ferrari CNR-IFN Istituto di Fotonica e Nanotecnologie CSMFO group Via Sommarive 14, 38050 Povo (Trento) (Italy) (literal)
Titolo
  • Luminescence and Amplified Stimulated Emission in CdSe@ZnS NC doped TiO2 and ZrO2 Waveguides (literal)
Abstract
  • A reproducible route for the preparation of high-quality CdSe–ZnS-doped titania and zirconia waveguides is presented. The optical properties of the resultant composite materials are found to be sensitive to the semiconducting properties of the host matrix. Titania-based composites are seen to be inherently photounstable because of photoelectron injection into the bulk matrix and subsequent nanocrystal (NC) oxidation. In comparison, zirconia composites are significantly more robust with highphotoluminescence (PL) retained for annealing temperatures up to 300 °C. Both titania and zirconia composite waveguides exhibit amplified stimulated emission (ASE); however only zirconia-based waveguides exhibit long-term photostability (loss of less than 30% ASE intensity after more than 40 min continuous excitation).We conclude that the low electron affinity of zirconia and its inherent high refractive index makes it an ideal candidate for NC-based optical waveguides. (literal)
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