Double-helical silicon microtubes

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35 Citations (Scopus)

Abstract

A new twist on semiconductors: The evaporation of Na from ionic intermetallic NaSi at 800°C leads to the formation of double-helical silicon microtubes. The tubes have nanogranular or smooth surfaces and a twinned structure with voids in the tube wall. A mechanism is proposed for the formation of the double-helical microtubes. (Figure Presented)

Original languageEnglish
Pages (from-to)3638-3641
Number of pages4
JournalAngewandte Chemie - International Edition
Volume49
Issue number21
DOIs
Publication statusPublished - 2010 May 10

Keywords

  • Helical structures
  • Microtubes
  • Silicon
  • X-ray diffraction
  • Zintl phases

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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