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Fano resonance in heavily doped porous silicon

  • Y. A. Pusep
  • , A. D. Rodrigues
  • , L. J. Borrero-González
  • , L. N. Acquaroli
  • , R. Urteaga
  • , R. D. Arce
  • , R. R. Koropecki
  • , M. Tirado
  • , D. Comedi

Research output: Contribution to journalArticlepeer-review

Abstract

Unexpectedly, the Fano resonance caused by the interference of continuum electron excitations with the longitudinal optical (LO) phonons was observed in random porous Si by Raman scattering. The analysis of the experimental data shows that the electron states trapped at the Si-SiO2 interface dominate in the observed Raman scattering. The gap energy associated with the interface states was determined.

Original languageEnglish
Pages (from-to)1405-1407
Number of pages3
JournalJournal of Raman Spectroscopy
Volume42
Issue number6
DOIs
StatePublished - Jun 2011
Externally publishedYes

Keywords

  • Raman spectroscopy
  • porous silicon

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