AlN thin films prepared by ArF plasma assisted PLD. Role of process conditions on electronic and chemical-morphological properties (Articolo in rivista)

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  • AlN thin films prepared by ArF plasma assisted PLD. Role of process conditions on electronic and chemical-morphological properties (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s00339-013-7632-4 (literal)
Alternative label
  • Cappelli, E.a and Trucchi, D.M.a and Orlando, S.b and Valentini, V.a and Mezzi, A.c and Kaciulis, S.c (2014)
    AlN thin films prepared by ArF plasma assisted PLD. Role of process conditions on electronic and chemical-morphological properties
    in Applied physics. A, Materials science & processing (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Cappelli, E.a and Trucchi, D.M.a and Orlando, S.b and Valentini, V.a and Mezzi, A.c and Kaciulis, S.c (literal)
Pagina inizio
  • 611 (literal)
Pagina fine
  • 617 (literal)
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  • cited By (since 1996)0; Article in Press (literal)
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  • http://www.scopus.com/inward/record.url?eid=2-s2.0-84874076939&partnerID=40&md5=36cecd02eefa6f73b48276f211b1bd4c (literal)
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  • 114 (literal)
Rivista
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  • 2 (literal)
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  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
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  • CNR-IMIP, via Salaria Km 29.3, Montelibretti, 00016, Italy; CNR-IMIP, sez. Potenza, Tito Scalo, 85050, Italy; CNR-ISMN, via Salaria Km 29.3, Montelibretti, 00016, Italy (literal)
Titolo
  • AlN thin films prepared by ArF plasma assisted PLD. Role of process conditions on electronic and chemical-morphological properties (literal)
Abstract
  • Aluminium nitride thin films were deposited on n-Si <100> substrates by RF plasma activated reactive pulsed laser deposition (PLD). An ArF excimer pulsed laser, 10 Hz and 2.5 J/cm2 energy fluence, has been used to ablate a pure Al target in a reactive atmosphere of N2 plasma (generated by a RF source), at varying processing parameters (substrate temperature, time, and N2 plasma configuration). We studied the dependence and correlation of structural and electronic properties with the experimental conditions. The chemical composition of deposited material has been determined by both Raman and X-ray photoelectron spectroscopy (XPS). Electrical resistivity has been evaluated by the sheet resistance method. Both spectroscopic characterizations (Raman and XPS) show a strong dependence in the formation of AlN on the deposition temperature. At low temperatures, there is little formation of nitride, with a prevalence of aluminium oxide, while at higher temperatures the N uptake increases, with AlN formation. Raman analysis also highlights the formation of nano-structures, for temperatures >=400ring operatorC. These material characteristics have a fundamental influence on the electronic properties. Indeed, electrical resistivity properties have been found to be strongly dependent on the film structure, nitrogen incorporation, and presence of mixed oxide compounds, closely related to deposition temperature. © 2013 Springer-Verlag Berlin Heidelberg. (literal)
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