Structural investigations of SiGe epitaxial layers grown by molecular beam epitaxy on Si(001) and Ge(001) substrates: II - Transmission electron microscopy and atomic force microscopy

N. Faleev, N. Sustersic, N. Bhargava, J. Kolodzey, S. Magonov, David Smith, Christiana Honsberg

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

The creation of crystal defects during epitaxial growth, and their proper characterization and classification are among the most critical issues impacting epitaxial structures and device applications. Epitaxial layers of different SiGe composition grown by molecular beam epitaxy (MBE) on Si(001) and Ge(001) substrates have been studied by Transmission Electron Microscopy (TEM) and Atomic Force Microscopy (AFM). The volumetric and surface structure of crystal defects revealed and characterized by TEM and AFM provided a detailed understanding of the major processes associated with defect creation and structural transformation during epitaxial growth. The main structural features were identified and correlations were made between crystal perfection and epitaxial growth conditions as also revealed by X-ray diffraction.

Original languageEnglish (US)
Pages (from-to)35-43
Number of pages9
JournalJournal of Crystal Growth
Volume365
DOIs
StatePublished - Jan 1 2013

Keywords

  • A1. Characterization
  • A1. Defects
  • A3. Molecular beam epitaxy
  • B1. Germanium silicon alloys

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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