Tail absorption in the determination of optical constants of silicon rich carbides (Articolo in rivista)

Type
Label
  • Tail absorption in the determination of optical constants of silicon rich carbides (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.tsf.2014.01.025 (literal)
Alternative label
  • Marco Allegrezza, Franco Gaspari, Mariaconcetta Canino, Michele Bellettato, Agostino Desalvo, Caterina Summonte (2014)
    Tail absorption in the determination of optical constants of silicon rich carbides
    in Thin solid films (Print); Elsevier BV, Amsterdam (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Marco Allegrezza, Franco Gaspari, Mariaconcetta Canino, Michele Bellettato, Agostino Desalvo, Caterina Summonte (literal)
Pagina inizio
  • 105 (literal)
Pagina fine
  • 111 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S0040609014000467 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 556 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 7 (literal)
Note
  • Scopus (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-IMM-Bologna (literal)
Titolo
  • Tail absorption in the determination of optical constants of silicon rich carbides (literal)
Abstract
  • We propose a method to analyze reflectance and transmittance spectra of hydrogenated amorphous silicon-rich carbide alloys, which allows the determination of n-k spectra with very good accuracy. The method is based on the Tauc-Lorentz formulation proposed by Jellison and Modine, in which we introduce an absorption band to take into account the tail states. The method is used to retrieve the n-k spectra of a set of silicon-rich carbide films fabricated in a variety of conditions. The results on oscillator parameters are discussed. We show that by introducing this absorption band we achieve a better accuracy in the determination of the oscillator parameters. The resulting oscillator frequency appears to be well correlated with compositional data. © 2014 Elsevier B.V. All rights reserved. (literal)
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