Optical parameters of hydrogenated A-silicon and alloys near the gap

S. Beretta, A. Frova, A. Selloni

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

The increase in Urbach energy Eo for decreasing x in a-SixC1-x:H is accounted for in terms of potential fluctuations in an alloy without site correlations. The influence of disorder on the optical gap Eg is determined by a convolutional procedure which extends a recent theory of DOS tails. We find Eg ≅ Ex - 1.3 Eo.

Original languageEnglish (US)
Pages (from-to)539-542
Number of pages4
JournalJournal of Non-Crystalline Solids
Volume77-78
Issue numberPART 1
DOIs
StatePublished - Dec 2 1985
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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