Luminescence from beta-fesi2 precipitates in Si. I: Morphology and epitaxial relationship (Articolo in rivista)

Type
Label
  • Luminescence from beta-fesi2 precipitates in Si. I: Morphology and epitaxial relationship (Articolo in rivista) (literal)
Anno
  • 2002-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.66.085319 (literal)
Alternative label
  • Grimaldi M.G., Bongiorno C., Spinella C., Grilli E., Martinelli L., Gemelli M., Migas D.B., Miglio L., Fanciulli M. (2002)
    Luminescence from beta-fesi2 precipitates in Si. I: Morphology and epitaxial relationship
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Grimaldi M.G., Bongiorno C., Spinella C., Grilli E., Martinelli L., Gemelli M., Migas D.B., Miglio L., Fanciulli M. (literal)
Pagina inizio
  • 85319 (literal)
Pagina fine
  • 85319 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 66 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [ 1 ] Univ Catania, INFM, I-95129 Catania, Italy [ 2 ] Univ Catania, Dipartimento Fis, I-95129 Catania, Italy [ 3 ] CNR, IMM, I-95127 Catania, Italy [ 4 ] Univ Milano Bicocca, INFM, I-20125 Milan, Italy [ 5 ] Univ Milano Bicocca, Dipartimento Sci Mat, I-20125 Milan, Italy [ 6 ] INFM, Lab MDM, I-20041 Agrate Brianza, MI, Italy (literal)
Titolo
  • Luminescence from beta-fesi2 precipitates in Si. I: Morphology and epitaxial relationship (literal)
Abstract
  • The goal of this paper is to investigate the morphology and the structure of ion-beam synthesized beta-FeSi2 precipitates and the defects in the Si matrix by using transmission electron microscopy (TEM) and, in a few cases, conversion electron Mo¨ssbauer spectroscopy or Rutherford backscattering spectrometry. We shall point out how the different process parameters affect the resulting structure and the optimum process window for light emitting application of beta-FeSi2. In particular, we will also show that within the optimum process window at least two different types of precipitates are obtained in separate regions: small ball-shaped precipitates in the surface region and large disc-shaped precipitates deeper in the sample. The latter are shown to display a very good interface to the Si matrix, as obtained by TEM analysis and dedicated molecular dynamics simulation. In the second part of this paper (Martinelli et al., Phys. Rev. B 66, 085320 2002), the nature and the origin of the 1.54 microns photoluminescence signal obtained from our best samples will be analyzed in detail. (literal)
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