Morphology and photoluminescence properties of zinc oxide films grown by pulsed laser deposition (Articolo in rivista)

Type
Label
  • Morphology and photoluminescence properties of zinc oxide films grown by pulsed laser deposition (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.apsusc.2009.04.051 (literal)
Alternative label
  • Valerini D, Caricato AP, Creti A, Lomascolo M, Romano F, Taurino A, Tunno T, Martino M (2009)
    Morphology and photoluminescence properties of zinc oxide films grown by pulsed laser deposition
    in Applied surface science
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Valerini D, Caricato AP, Creti A, Lomascolo M, Romano F, Taurino A, Tunno T, Martino M (literal)
Pagina inizio
  • 9680 (literal)
Pagina fine
  • 9683 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 255 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 24 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1. Univ Salento, Dipartimento Fis, Grp L3, I-73100 Lecce, Italy 2. Ist Microelettron & Microsistemi, CNR, Sez Lecce, I-73100 Lecce, Italy (literal)
Titolo
  • Morphology and photoluminescence properties of zinc oxide films grown by pulsed laser deposition (literal)
Abstract
  • Zinc oxide films with different morphologies have been grown by pulsed laser deposition, varying substrate temperature and oxygen pressure. At low oxygen pressure and low substrate temperature continuous films with different roughness have been obtained, while at high substrate temperature a film with sparse hexagonal pyramids has been observed. Increasing the oxygen pressure the film became rougher and at 100 Pa a rod-array has been deposited. The columns of this rod-array grew along the wurtzite c-axis perpendicularly to the substrate surface as proved by X-ray diffraction measurements. Near to the sample borders the columns were slightly tilted towards the center of the sample. The possible growth mechanisms giving rise to the different morphologies have been discussed. Low-temperature photoluminescence measurements allowed to get information about the film quality, showing the variations of the excitonic peak and two defect bands (green and violet-blue) with the different deposition parameters. (literal)
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