Hybrids of Organic Molecules and Flat, Oxide-Free Silicon: High-Density Monolayers, Electronic Properties, and Functionalization

Y. Li, S.A. Calder, O. Yaffe, D. Cahen, H. Haick, L. Kronik, H. Zuilhof

Research output: Contribution to journalArticleAcademicpeer-review

85 Citations (Scopus)

Abstract

Since the first report of Si–C bound organic monolayers on oxide-free Si almost two decades ago, a substantial amount of research has focused on studying the fundamental mechanical and electronic properties of these Si/molecule surfaces and interfaces. This feature article covers three closely related topics, including recent advances in achieving high-density organic monolayers (i.e., atomic coverage >55%) on oxide-free Si(111) substrates, an overview of progress in the fundamental understanding of the energetics and electronic properties of hybrid Si/molecule systems, and a brief summary of recent examples of subsequent functionalization on these high-density monolayers, which can significantly expand the range of applicability. Taken together, these topics provide an overview of the present status of this active area of research.
Original languageEnglish
Pages (from-to)9920-9929
JournalLangmuir
Volume28
Issue number26
DOIs
Publication statusPublished - 2012

Keywords

  • hydrogen-terminated si(111)
  • mixed methyl/allyl monolayers
  • alkyl monolayers
  • porous silicon
  • si surfaces
  • carrier lifetime
  • label-free
  • interfaces
  • hydrosilylation
  • passivation

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